1/*-
2 * Implementation of SCSI Direct Access Peripheral driver for CAM.
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/cam/scsi/scsi_da.c 220644 2011-04-14 21:25:32Z mav $");
31
32#include <sys/param.h>
33
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bio.h>
38#include <sys/sysctl.h>
39#include <sys/taskqueue.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/conf.h>
43#include <sys/devicestat.h>
44#include <sys/eventhandler.h>
45#include <sys/malloc.h>
46#include <sys/cons.h>
47#include <geom/geom_disk.h>
48#endif /* _KERNEL */
49
50#ifndef _KERNEL
51#include <stdio.h>
52#include <string.h>
53#endif /* _KERNEL */
54
55#include <cam/cam.h>
56#include <cam/cam_ccb.h>
57#include <cam/cam_periph.h>
58#include <cam/cam_xpt_periph.h>
59#include <cam/cam_sim.h>
60
61#include <cam/scsi/scsi_message.h>
62
63#ifndef _KERNEL
64#include <cam/scsi/scsi_da.h>
65#endif /* !_KERNEL */
66
67#ifdef _KERNEL
68typedef enum {
69 DA_STATE_PROBE,
70 DA_STATE_PROBE2,
71 DA_STATE_NORMAL
72} da_state;
73
74typedef enum {
75 DA_FLAG_PACK_INVALID = 0x001,
76 DA_FLAG_NEW_PACK = 0x002,
77 DA_FLAG_PACK_LOCKED = 0x004,
78 DA_FLAG_PACK_REMOVABLE = 0x008,
79 DA_FLAG_TAGGED_QUEUING = 0x010,
80 DA_FLAG_NEED_OTAG = 0x020,
81 DA_FLAG_WENT_IDLE = 0x040,
82 DA_FLAG_RETRY_UA = 0x080,
83 DA_FLAG_OPEN = 0x100,
84 DA_FLAG_SCTX_INIT = 0x200
85} da_flags;
86
87typedef enum {
88 DA_Q_NONE = 0x00,
89 DA_Q_NO_SYNC_CACHE = 0x01,
90 DA_Q_NO_6_BYTE = 0x02,
91 DA_Q_NO_PREVENT = 0x04
92} da_quirks;
93
94typedef enum {
95 DA_CCB_PROBE = 0x01,
96 DA_CCB_PROBE2 = 0x02,
97 DA_CCB_BUFFER_IO = 0x03,
98 DA_CCB_WAITING = 0x04,
99 DA_CCB_DUMP = 0x05,
100 DA_CCB_TYPE_MASK = 0x0F,
101 DA_CCB_RETRY_UA = 0x10
102} da_ccb_state;
103
104/* Offsets into our private area for storing information */
105#define ccb_state ppriv_field0
106#define ccb_bp ppriv_ptr1
107
108struct disk_params {
109 u_int8_t heads;
110 u_int32_t cylinders;
111 u_int8_t secs_per_track;
112 u_int32_t secsize; /* Number of bytes/sector */
113 u_int64_t sectors; /* total number sectors */
114};
115
116struct da_softc {
117 struct bio_queue_head bio_queue;
118 SLIST_ENTRY(da_softc) links;
119 LIST_HEAD(, ccb_hdr) pending_ccbs;
120 da_state state;
121 da_flags flags;
122 da_quirks quirks;
123 int minimum_cmd_size;
124 int ordered_tag_count;
125 int outstanding_cmds;
126 struct disk_params params;
127 struct disk *disk;
128 union ccb saved_ccb;
129 struct task sysctl_task;
130 struct sysctl_ctx_list sysctl_ctx;
131 struct sysctl_oid *sysctl_tree;
132 struct callout sendordered_c;
133 uint64_t wwpn;
134};
135
136struct da_quirk_entry {
137 struct scsi_inquiry_pattern inq_pat;
138 da_quirks quirks;
139};
140
141static const char quantum[] = "QUANTUM";
142static const char microp[] = "MICROP";
143
144static struct da_quirk_entry da_quirk_table[] =
145{
146 /* SPI, FC devices */
147 {
148 /*
149 * Fujitsu M2513A MO drives.
150 * Tested devices: M2513A2 firmware versions 1200 & 1300.
151 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
152 * Reported by: W.Scholten <whs@xs4all.nl>
153 */
154 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
155 /*quirks*/ DA_Q_NO_SYNC_CACHE
156 },
157 {
158 /* See above. */
159 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
160 /*quirks*/ DA_Q_NO_SYNC_CACHE
161 },
162 {
163 /*
164 * This particular Fujitsu drive doesn't like the
165 * synchronize cache command.
166 * Reported by: Tom Jackson <toj@gorilla.net>
167 */
168 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
169 /*quirks*/ DA_Q_NO_SYNC_CACHE
170 },
171 {
172 /*
173 * This drive doesn't like the synchronize cache command
174 * either. Reported by: Matthew Jacob <mjacob@feral.com>
175 * in NetBSD PR kern/6027, August 24, 1998.
176 */
177 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
178 /*quirks*/ DA_Q_NO_SYNC_CACHE
179 },
180 {
181 /*
182 * This drive doesn't like the synchronize cache command
183 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
184 * (PR 8882).
185 */
186 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
187 /*quirks*/ DA_Q_NO_SYNC_CACHE
188 },
189 {
190 /*
191 * Doesn't like the synchronize cache command.
192 * Reported by: Blaz Zupan <blaz@gold.amis.net>
193 */
194 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
195 /*quirks*/ DA_Q_NO_SYNC_CACHE
196 },
197 {
198 /*
199 * Doesn't like the synchronize cache command.
200 * Reported by: Blaz Zupan <blaz@gold.amis.net>
201 */
202 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
203 /*quirks*/ DA_Q_NO_SYNC_CACHE
204 },
205 {
206 /*
207 * Doesn't like the synchronize cache command.
208 */
209 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
210 /*quirks*/ DA_Q_NO_SYNC_CACHE
211 },
212 {
213 /*
214 * Doesn't like the synchronize cache command.
215 * Reported by: walter@pelissero.de
216 */
217 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
218 /*quirks*/ DA_Q_NO_SYNC_CACHE
219 },
220 {
221 /*
222 * Doesn't work correctly with 6 byte reads/writes.
223 * Returns illegal request, and points to byte 9 of the
224 * 6-byte CDB.
225 * Reported by: Adam McDougall <bsdx@spawnet.com>
226 */
227 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
228 /*quirks*/ DA_Q_NO_6_BYTE
229 },
230 {
231 /* See above. */
232 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
233 /*quirks*/ DA_Q_NO_6_BYTE
234 },
235 {
236 /*
237 * Doesn't like the synchronize cache command.
238 * Reported by: walter@pelissero.de
239 */
240 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
241 /*quirks*/ DA_Q_NO_SYNC_CACHE
242 },
243 {
244 /*
245 * The CISS RAID controllers do not support SYNC_CACHE
246 */
247 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
248 /*quirks*/ DA_Q_NO_SYNC_CACHE
249 },
250 /* USB mass storage devices supported by umass(4) */
251 {
252 /*
253 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
254 * PR: kern/51675
255 */
256 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
257 /*quirks*/ DA_Q_NO_SYNC_CACHE
258 },
259 {
260 /*
261 * Power Quotient Int. (PQI) USB flash key
262 * PR: kern/53067
263 */
264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
265 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
266 },
267 {
268 /*
269 * Creative Nomad MUVO mp3 player (USB)
270 * PR: kern/53094
271 */
272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
273 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
274 },
275 {
276 /*
277 * Jungsoft NEXDISK USB flash key
278 * PR: kern/54737
279 */
280 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
281 /*quirks*/ DA_Q_NO_SYNC_CACHE
282 },
283 {
284 /*
285 * FreeDik USB Mini Data Drive
286 * PR: kern/54786
287 */
288 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
289 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
290 },
291 {
292 /*
293 * Sigmatel USB Flash MP3 Player
294 * PR: kern/57046
295 */
296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
297 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
298 },
299 {
300 /*
301 * Neuros USB Digital Audio Computer
302 * PR: kern/63645
303 */
304 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
305 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
306 },
307 {
308 /*
309 * SEAGRAND NP-900 MP3 Player
310 * PR: kern/64563
311 */
312 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
313 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
314 },
315 {
316 /*
317 * iRiver iFP MP3 player (with UMS Firmware)
318 * PR: kern/54881, i386/63941, kern/66124
319 */
320 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
321 /*quirks*/ DA_Q_NO_SYNC_CACHE
322 },
323 {
324 /*
325 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
326 * PR: kern/70158
327 */
328 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
329 /*quirks*/ DA_Q_NO_SYNC_CACHE
330 },
331 {
332 /*
333 * ZICPlay USB MP3 Player with FM
334 * PR: kern/75057
335 */
336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
337 /*quirks*/ DA_Q_NO_SYNC_CACHE
338 },
339 {
340 /*
341 * TEAC USB floppy mechanisms
342 */
343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
344 /*quirks*/ DA_Q_NO_SYNC_CACHE
345 },
346 {
347 /*
348 * Kingston DataTraveler II+ USB Pen-Drive.
349 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
350 */
351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
352 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
353 },
354 {
355 /*
356 * Motorola E398 Mobile Phone (TransFlash memory card).
357 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
358 * PR: usb/89889
359 */
360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
361 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
362 },
363 {
364 /*
365 * Qware BeatZkey! Pro
366 * PR: usb/79164
367 */
368 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
369 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
370 },
371 {
372 /*
373 * Time DPA20B 1GB MP3 Player
374 * PR: usb/81846
375 */
376 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
377 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
378 },
379 {
380 /*
381 * Samsung USB key 128Mb
382 * PR: usb/90081
383 */
384 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
385 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
386 },
387 {
388 /*
389 * Kingston DataTraveler 2.0 USB Flash memory.
390 * PR: usb/89196
391 */
392 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
393 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
394 },
395 {
396 /*
397 * Creative MUVO Slim mp3 player (USB)
398 * PR: usb/86131
399 */
400 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
401 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
402 },
403 {
404 /*
405 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
406 * PR: usb/80487
407 */
408 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
409 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
410 },
411 {
412 /*
413 * SanDisk Micro Cruzer 128MB
414 * PR: usb/75970
415 */
416 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
417 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
418 },
419 {
420 /*
421 * TOSHIBA TransMemory USB sticks
422 * PR: kern/94660
423 */
424 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
425 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
426 },
427 {
428 /*
429 * PNY USB Flash keys
430 * PR: usb/75578, usb/72344, usb/65436
431 */
432 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
433 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
434 },
435 {
436 /*
437 * Genesys 6-in-1 Card Reader
438 * PR: usb/94647
439 */
440 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
441 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
442 },
443 {
444 /*
445 * Rekam Digital CAMERA
446 * PR: usb/98713
447 */
448 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
449 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
450 },
451 {
452 /*
453 * iRiver H10 MP3 player
454 * PR: usb/102547
455 */
456 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
457 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
458 },
459 {
460 /*
461 * iRiver U10 MP3 player
462 * PR: usb/92306
463 */
464 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
465 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
466 },
467 {
468 /*
469 * X-Micro Flash Disk
470 * PR: usb/96901
471 */
472 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
473 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
474 },
475 {
476 /*
477 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
478 * PR: usb/96546
479 */
480 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
481 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
482 },
483 {
484 /*
485 * Denver MP3 player
486 * PR: usb/107101
487 */
488 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
489 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
490 },
491 {
492 /*
493 * Philips USB Key Audio KEY013
494 * PR: usb/68412
495 */
496 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
497 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
498 },
499 {
500 /*
501 * JNC MP3 Player
502 * PR: usb/94439
503 */
504 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
505 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
506 },
507 {
508 /*
509 * SAMSUNG MP0402H
510 * PR: usb/108427
511 */
512 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
513 /*quirks*/ DA_Q_NO_SYNC_CACHE
514 },
515 {
516 /*
517 * I/O Magic USB flash - Giga Bank
518 * PR: usb/108810
519 */
520 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
521 /*quirks*/ DA_Q_NO_SYNC_CACHE
522 },
523 {
524 /*
525 * JoyFly 128mb USB Flash Drive
526 * PR: 96133
527 */
528 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
529 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
530 },
531 {
532 /*
533 * ChipsBnk usb stick
534 * PR: 103702
535 */
536 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
537 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
538 },
539 {
540 /*
541 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
542 * PR: 129858
543 */
544 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
545 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
546 },
547 {
548 /*
549 * Samsung YP-U3 mp3-player
550 * PR: 125398
551 */
552 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
553 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
554 },
555 {
556 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
557 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
558 },
559 {
560 /*
561 * Sony Cyber-Shot DSC cameras
562 * PR: usb/137035
563 */
564 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
565 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
566 }
567};
568
569static disk_strategy_t dastrategy;
570static dumper_t dadump;
571static periph_init_t dainit;
572static void daasync(void *callback_arg, u_int32_t code,
573 struct cam_path *path, void *arg);
574static void dasysctlinit(void *context, int pending);
575static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
576static periph_ctor_t daregister;
577static periph_dtor_t dacleanup;
578static periph_start_t dastart;
579static periph_oninv_t daoninvalidate;
580static void dadone(struct cam_periph *periph,
581 union ccb *done_ccb);
582static int daerror(union ccb *ccb, u_int32_t cam_flags,
583 u_int32_t sense_flags);
584static void daprevent(struct cam_periph *periph, int action);
585static int dagetcapacity(struct cam_periph *periph);
586static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
587 uint64_t maxsector);
588static timeout_t dasendorderedtag;
589static void dashutdown(void *arg, int howto);
590
591#ifndef DA_DEFAULT_TIMEOUT
592#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
593#endif
594
595#ifndef DA_DEFAULT_RETRY
596#define DA_DEFAULT_RETRY 4
597#endif
598
599#ifndef DA_DEFAULT_SEND_ORDERED
600#define DA_DEFAULT_SEND_ORDERED 1
601#endif
602
603
604static int da_retry_count = DA_DEFAULT_RETRY;
605static int da_default_timeout = DA_DEFAULT_TIMEOUT;
606static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
607
608SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
609 "CAM Direct Access Disk driver");
610SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
611 &da_retry_count, 0, "Normal I/O retry count");
612TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
613SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
614 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
615TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
616SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
617 &da_send_ordered, 0, "Send Ordered Tags");
618TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
619
620/*
621 * DA_ORDEREDTAG_INTERVAL determines how often, relative
622 * to the default timeout, we check to see whether an ordered
623 * tagged transaction is appropriate to prevent simple tag
624 * starvation. Since we'd like to ensure that there is at least
625 * 1/2 of the timeout length left for a starved transaction to
626 * complete after we've sent an ordered tag, we must poll at least
627 * four times in every timeout period. This takes care of the worst
628 * case where a starved transaction starts during an interval that
629 * meets the requirement "don't send an ordered tag" test so it takes
630 * us two intervals to determine that a tag must be sent.
631 */
632#ifndef DA_ORDEREDTAG_INTERVAL
633#define DA_ORDEREDTAG_INTERVAL 4
634#endif
635
636static struct periph_driver dadriver =
637{
638 dainit, "da",
639 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
640};
641
642PERIPHDRIVER_DECLARE(da, dadriver);
643
644MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
645
646static int
647daopen(struct disk *dp)
648{
649 struct cam_periph *periph;
650 struct da_softc *softc;
651 int unit;
652 int error;
653
654 periph = (struct cam_periph *)dp->d_drv1;
655 if (periph == NULL) {
656 return (ENXIO);
657 }
658
659 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
660 return(ENXIO);
661 }
662
663 cam_periph_lock(periph);
664 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
665 cam_periph_unlock(periph);
666 cam_periph_release(periph);
667 return (error);
668 }
669
670 unit = periph->unit_number;
671 softc = (struct da_softc *)periph->softc;
672 softc->flags |= DA_FLAG_OPEN;
673
674 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
675 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
676 unit));
677
678 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
679 /* Invalidate our pack information. */
680 softc->flags &= ~DA_FLAG_PACK_INVALID;
681 }
682
683 error = dagetcapacity(periph);
684
685 if (error == 0) {
686
687 softc->disk->d_sectorsize = softc->params.secsize;
688 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
689 /* XXX: these are not actually "firmware" values, so they may be wrong */
690 softc->disk->d_fwsectors = softc->params.secs_per_track;
691 softc->disk->d_fwheads = softc->params.heads;
692 softc->disk->d_devstat->block_size = softc->params.secsize;
693 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
694
695 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
696 (softc->quirks & DA_Q_NO_PREVENT) == 0)
697 daprevent(periph, PR_PREVENT);
698 } else
699 softc->flags &= ~DA_FLAG_OPEN;
700
701 cam_periph_unhold(periph);
702 cam_periph_unlock(periph);
703
704 if (error != 0) {
705 cam_periph_release(periph);
706 }
707 return (error);
708}
709
710static int
711daclose(struct disk *dp)
712{
713 struct cam_periph *periph;
714 struct da_softc *softc;
715 int error;
716
717 periph = (struct cam_periph *)dp->d_drv1;
718 if (periph == NULL)
719 return (ENXIO);
720
721 cam_periph_lock(periph);
722 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
723 cam_periph_unlock(periph);
724 cam_periph_release(periph);
725 return (error);
726 }
727
728 softc = (struct da_softc *)periph->softc;
729
730 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
731 union ccb *ccb;
732
733 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
734
735 scsi_synchronize_cache(&ccb->csio,
736 /*retries*/1,
737 /*cbfcnp*/dadone,
738 MSG_SIMPLE_Q_TAG,
739 /*begin_lba*/0,/* Cover the whole disk */
740 /*lb_count*/0,
741 SSD_FULL_SIZE,
742 5 * 60 * 1000);
743
744 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
745 /*sense_flags*/SF_RETRY_UA,
746 softc->disk->d_devstat);
747
748 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
749 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
750 CAM_SCSI_STATUS_ERROR) {
751 int asc, ascq;
752 int sense_key, error_code;
753
754 scsi_extract_sense(&ccb->csio.sense_data,
755 &error_code,
756 &sense_key,
757 &asc, &ascq);
758 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
759 scsi_sense_print(&ccb->csio);
760 } else {
761 xpt_print(periph->path, "Synchronize cache "
762 "failed, status == 0x%x, scsi status == "
763 "0x%x\n", ccb->csio.ccb_h.status,
764 ccb->csio.scsi_status);
765 }
766 }
767
768 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
769 cam_release_devq(ccb->ccb_h.path,
770 /*relsim_flags*/0,
771 /*reduction*/0,
772 /*timeout*/0,
773 /*getcount_only*/0);
774
775 xpt_release_ccb(ccb);
776
777 }
778
779 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
780 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
781 daprevent(periph, PR_ALLOW);
782 /*
783 * If we've got removeable media, mark the blocksize as
784 * unavailable, since it could change when new media is
785 * inserted.
786 */
787 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
788 }
789
790 softc->flags &= ~DA_FLAG_OPEN;
791 cam_periph_unhold(periph);
792 cam_periph_unlock(periph);
793 cam_periph_release(periph);
794 return (0);
795}
796
797/*
798 * Actually translate the requested transfer into one the physical driver
799 * can understand. The transfer is described by a buf and will include
800 * only one physical transfer.
801 */
802static void
803dastrategy(struct bio *bp)
804{
805 struct cam_periph *periph;
806 struct da_softc *softc;
807
808 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
809 if (periph == NULL) {
810 biofinish(bp, NULL, ENXIO);
811 return;
812 }
813 softc = (struct da_softc *)periph->softc;
814
815 cam_periph_lock(periph);
816
817 /*
818 * If the device has been made invalid, error out
819 */
820 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
821 cam_periph_unlock(periph);
822 biofinish(bp, NULL, ENXIO);
823 return;
824 }
825
826 /*
827 * Place it in the queue of disk activities for this disk
828 */
829 bioq_disksort(&softc->bio_queue, bp);
830
831 /*
832 * Schedule ourselves for performing the work.
833 */
834 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
835 cam_periph_unlock(periph);
836
837 return;
838}
839
840static int
841dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
842{
843 struct cam_periph *periph;
844 struct da_softc *softc;
845 u_int secsize;
846 struct ccb_scsiio csio;
847 struct disk *dp;
848
849 dp = arg;
850 periph = dp->d_drv1;
851 if (periph == NULL)
852 return (ENXIO);
853 softc = (struct da_softc *)periph->softc;
854 cam_periph_lock(periph);
855 secsize = softc->params.secsize;
856
857 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
858 cam_periph_unlock(periph);
859 return (ENXIO);
860 }
861
862 if (length > 0) {
863 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
864 csio.ccb_h.ccb_state = DA_CCB_DUMP;
865 scsi_read_write(&csio,
866 /*retries*/1,
867 dadone,
868 MSG_ORDERED_Q_TAG,
869 /*read*/FALSE,
870 /*byte2*/0,
871 /*minimum_cmd_size*/ softc->minimum_cmd_size,
872 offset / secsize,
873 length / secsize,
874 /*data_ptr*/(u_int8_t *) virtual,
875 /*dxfer_len*/length,
876 /*sense_len*/SSD_FULL_SIZE,
877 DA_DEFAULT_TIMEOUT * 1000);
878 xpt_polled_action((union ccb *)&csio);
879
880 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
881 printf("Aborting dump due to I/O error.\n");
882 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
883 CAM_SCSI_STATUS_ERROR)
884 scsi_sense_print(&csio);
885 else
886 printf("status == 0x%x, scsi status == 0x%x\n",
887 csio.ccb_h.status, csio.scsi_status);
888 return(EIO);
889 }
890 cam_periph_unlock(periph);
891 return(0);
892 }
893
894 /*
895 * Sync the disk cache contents to the physical media.
896 */
897 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
898
899 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
900 csio.ccb_h.ccb_state = DA_CCB_DUMP;
901 scsi_synchronize_cache(&csio,
902 /*retries*/1,
903 /*cbfcnp*/dadone,
904 MSG_SIMPLE_Q_TAG,
905 /*begin_lba*/0,/* Cover the whole disk */
906 /*lb_count*/0,
907 SSD_FULL_SIZE,
908 5 * 60 * 1000);
909 xpt_polled_action((union ccb *)&csio);
910
911 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
912 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
913 CAM_SCSI_STATUS_ERROR) {
914 int asc, ascq;
915 int sense_key, error_code;
916
917 scsi_extract_sense(&csio.sense_data,
918 &error_code,
919 &sense_key,
920 &asc, &ascq);
921 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
922 scsi_sense_print(&csio);
923 } else {
924 xpt_print(periph->path, "Synchronize cache "
925 "failed, status == 0x%x, scsi status == "
926 "0x%x\n", csio.ccb_h.status,
927 csio.scsi_status);
928 }
929 }
930 }
931 cam_periph_unlock(periph);
932 return (0);
933}
934
935static void
936dainit(void)
937{
938 cam_status status;
939
940 /*
941 * Install a global async callback. This callback will
942 * receive async callbacks like "new device found".
943 */
944 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
945
946 if (status != CAM_REQ_CMP) {
947 printf("da: Failed to attach master async callback "
948 "due to status 0x%x!\n", status);
949 } else if (da_send_ordered) {
950
951 /* Register our shutdown event handler */
952 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
953 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
954 printf("dainit: shutdown event registration failed!\n");
955 }
956}
957
958static void
959daoninvalidate(struct cam_periph *periph)
960{
961 struct da_softc *softc;
962
963 softc = (struct da_softc *)periph->softc;
964
965 /*
966 * De-register any async callbacks.
967 */
968 xpt_register_async(0, daasync, periph, periph->path);
969
970 softc->flags |= DA_FLAG_PACK_INVALID;
971
972 /*
973 * Return all queued I/O with ENXIO.
974 * XXX Handle any transactions queued to the card
975 * with XPT_ABORT_CCB.
976 */
977 bioq_flush(&softc->bio_queue, NULL, ENXIO);
978
979 disk_gone(softc->disk);
980 xpt_print(periph->path, "lost device\n");
981}
982
983static void
984dacleanup(struct cam_periph *periph)
985{
986 struct da_softc *softc;
987
988 softc = (struct da_softc *)periph->softc;
989
990 xpt_print(periph->path, "removing device entry\n");
991 cam_periph_unlock(periph);
992
993 /*
994 * If we can't free the sysctl tree, oh well...
995 */
996 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
997 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
998 xpt_print(periph->path, "can't remove sysctl context\n");
999 }
1000
1001 disk_destroy(softc->disk);
1002 callout_drain(&softc->sendordered_c);
1003 free(softc, M_DEVBUF);
1004 cam_periph_lock(periph);
1005}
1006
1007static void
1008daasync(void *callback_arg, u_int32_t code,
1009 struct cam_path *path, void *arg)
1010{
1011 struct cam_periph *periph;
1012
1013 periph = (struct cam_periph *)callback_arg;
1014 switch (code) {
1015 case AC_FOUND_DEVICE:
1016 {
1017 struct ccb_getdev *cgd;
1018 cam_status status;
1019
1020 cgd = (struct ccb_getdev *)arg;
1021 if (cgd == NULL)
1022 break;
1023
1024 if (cgd->protocol != PROTO_SCSI)
1025 break;
1026
1027 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1028 && SID_TYPE(&cgd->inq_data) != T_RBC
1029 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1030 break;
1031
1032 /*
1033 * Allocate a peripheral instance for
1034 * this device and start the probe
1035 * process.
1036 */
1037 status = cam_periph_alloc(daregister, daoninvalidate,
1038 dacleanup, dastart,
1039 "da", CAM_PERIPH_BIO,
1040 cgd->ccb_h.path, daasync,
1041 AC_FOUND_DEVICE, cgd);
1042
1043 if (status != CAM_REQ_CMP
1044 && status != CAM_REQ_INPROG)
1045 printf("daasync: Unable to attach to new device "
1046 "due to status 0x%x\n", status);
1047 break;
1048 }
1049 case AC_SENT_BDR:
1050 case AC_BUS_RESET:
1051 {
1052 struct da_softc *softc;
1053 struct ccb_hdr *ccbh;
1054
1055 softc = (struct da_softc *)periph->softc;
1056 /*
1057 * Don't fail on the expected unit attention
1058 * that will occur.
1059 */
1060 softc->flags |= DA_FLAG_RETRY_UA;
1061 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1062 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1063 /* FALLTHROUGH*/
1064 }
1065 default:
1066 cam_periph_async(periph, code, path, arg);
1067 break;
1068 }
1069}
1070
1071static void
1072dasysctlinit(void *context, int pending)
1073{
1074 struct cam_periph *periph;
1075 struct da_softc *softc;
1076 char tmpstr[80], tmpstr2[80];
1077 struct ccb_trans_settings cts;
1078
1079 periph = (struct cam_periph *)context;
1080 /*
1081 * periph was held for us when this task was enqueued
1082 */
1083 if (periph->flags & CAM_PERIPH_INVALID) {
1084 cam_periph_release(periph);
1085 return;
1086 }
1087
1088 softc = (struct da_softc *)periph->softc;
1089 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1090 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1091
1092 sysctl_ctx_init(&softc->sysctl_ctx);
1093 softc->flags |= DA_FLAG_SCTX_INIT;
1094 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1095 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1096 CTLFLAG_RD, 0, tmpstr);
1097 if (softc->sysctl_tree == NULL) {
1098 printf("dasysctlinit: unable to allocate sysctl tree\n");
1099 cam_periph_release(periph);
1100 return;
1101 }
1102
1103 /*
1104 * Now register the sysctl handler, so the user can change the value on
1105 * the fly.
1106 */
1107 SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1108 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1109 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1110 "Minimum CDB size");
1111
1112 /*
1113 * Add some addressing info.
1114 */
1115 memset(&cts, 0, sizeof (cts));
1116 xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1117 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1118 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1119 cam_periph_lock(periph);
1120 xpt_action((union ccb *)&cts);
1121 cam_periph_unlock(periph);
1122 if (cts.ccb_h.status != CAM_REQ_CMP) {
1123 cam_periph_release(periph);
1124 return;
1125 }
1126 if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1127 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1128 if (fc->valid & CTS_FC_VALID_WWPN) {
1129 softc->wwpn = fc->wwpn;
1130 SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1131 SYSCTL_CHILDREN(softc->sysctl_tree),
1132 OID_AUTO, "wwpn", CTLFLAG_RD,
1133 &softc->wwpn, "World Wide Port Name");
1134 }
1135 }
1136 cam_periph_release(periph);
1137}
1138
1139static int
1140dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1141{
1142 int error, value;
1143
1144 value = *(int *)arg1;
1145
1146 error = sysctl_handle_int(oidp, &value, 0, req);
1147
1148 if ((error != 0)
1149 || (req->newptr == NULL))
1150 return (error);
1151
1152 /*
1153 * Acceptable values here are 6, 10, 12 or 16.
1154 */
1155 if (value < 6)
1156 value = 6;
1157 else if ((value > 6)
1158 && (value <= 10))
1159 value = 10;
1160 else if ((value > 10)
1161 && (value <= 12))
1162 value = 12;
1163 else if (value > 12)
1164 value = 16;
1165
1166 *(int *)arg1 = value;
1167
1168 return (0);
1169}
1170
1171static cam_status
1172daregister(struct cam_periph *periph, void *arg)
1173{
1174 struct da_softc *softc;
1175 struct ccb_pathinq cpi;
1176 struct ccb_getdev *cgd;
1177 char tmpstr[80];
1178 caddr_t match;
1179
1180 cgd = (struct ccb_getdev *)arg;
1181 if (periph == NULL) {
1182 printf("daregister: periph was NULL!!\n");
1183 return(CAM_REQ_CMP_ERR);
1184 }
1185
1186 if (cgd == NULL) {
1187 printf("daregister: no getdev CCB, can't register device\n");
1188 return(CAM_REQ_CMP_ERR);
1189 }
1190
1191 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1192 M_NOWAIT|M_ZERO);
1193
1194 if (softc == NULL) {
1195 printf("daregister: Unable to probe new device. "
1196 "Unable to allocate softc\n");
1197 return(CAM_REQ_CMP_ERR);
1198 }
1199
1200 LIST_INIT(&softc->pending_ccbs);
1201 softc->state = DA_STATE_PROBE;
1202 bioq_init(&softc->bio_queue);
1203 if (SID_IS_REMOVABLE(&cgd->inq_data))
1204 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1205 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1206 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1207
1208 periph->softc = softc;
1209
1210 /*
1211 * See if this device has any quirks.
1212 */
1213 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1214 (caddr_t)da_quirk_table,
1215 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1216 sizeof(*da_quirk_table), scsi_inquiry_match);
1217
1218 if (match != NULL)
1219 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1220 else
1221 softc->quirks = DA_Q_NONE;
1222
1223 /* Check if the SIM does not want 6 byte commands */
1224 bzero(&cpi, sizeof(cpi));
1225 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1226 cpi.ccb_h.func_code = XPT_PATH_INQ;
1227 xpt_action((union ccb *)&cpi);
1228 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1229 softc->quirks |= DA_Q_NO_6_BYTE;
1230
1231 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1232
1233 /*
1234 * RBC devices don't have to support READ(6), only READ(10).
1235 */
1236 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1237 softc->minimum_cmd_size = 10;
1238 else
1239 softc->minimum_cmd_size = 6;
1240
1241 /*
1242 * Load the user's default, if any.
1243 */
1244 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1245 periph->unit_number);
1246 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1247
1248 /*
1249 * 6, 10, 12 and 16 are the currently permissible values.
1250 */
1251 if (softc->minimum_cmd_size < 6)
1252 softc->minimum_cmd_size = 6;
1253 else if ((softc->minimum_cmd_size > 6)
1254 && (softc->minimum_cmd_size <= 10))
1255 softc->minimum_cmd_size = 10;
1256 else if ((softc->minimum_cmd_size > 10)
1257 && (softc->minimum_cmd_size <= 12))
1258 softc->minimum_cmd_size = 12;
1259 else if (softc->minimum_cmd_size > 12)
1260 softc->minimum_cmd_size = 16;
1261
1262 /*
1263 * Register this media as a disk
1264 */
1265
1266 /*
1267 * Add async callbacks for bus reset and
1268 * bus device reset calls. I don't bother
1269 * checking if this fails as, in most cases,
1270 * the system will function just fine without
1271 * them and the only alternative would be to
1272 * not attach the device on failure.
1273 */
1274 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE,
1275 daasync, periph, periph->path);
1276
1277 /*
1278 * Take an exclusive refcount on the periph while dastart is called
1279 * to finish the probe. The reference will be dropped in dadone at
1280 * the end of probe.
1281 */
1282 (void)cam_periph_hold(periph, PRIBIO);
1283
1284 /*
1285 * Schedule a periodic event to occasionally send an
1286 * ordered tag to a device.
1287 */
1288 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1289 callout_reset(&softc->sendordered_c,
1290 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1291 dasendorderedtag, softc);
1292
1293 mtx_unlock(periph->sim->mtx);
1294 softc->disk = disk_alloc();
1295 softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1296 periph->unit_number, 0,
1297 DEVSTAT_BS_UNAVAILABLE,
1298 SID_TYPE(&cgd->inq_data) |
1299 XPORT_DEVSTAT_TYPE(cpi.transport),
1300 DEVSTAT_PRIORITY_DISK);
1301 softc->disk->d_open = daopen;
1302 softc->disk->d_close = daclose;
1303 softc->disk->d_strategy = dastrategy;
1304 softc->disk->d_dump = dadump;
1305 softc->disk->d_name = "da";
1306 softc->disk->d_drv1 = periph;
1307 if (cpi.maxio == 0)
1308 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */
1309 else if (cpi.maxio > MAXPHYS)
1310 softc->disk->d_maxsize = MAXPHYS; /* for safety */
1311 else
1312 softc->disk->d_maxsize = cpi.maxio;
1313 softc->disk->d_unit = periph->unit_number;
1314 softc->disk->d_flags = 0;
1315 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1316 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1317 strlcpy(softc->disk->d_ident, cgd->serial_num,
1318 MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1));
1319 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1320 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1321 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1322 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1323 cgd->inq_data.product, sizeof(cgd->inq_data.product),
1324 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1325 softc->disk->d_hba_vendor = cpi.hba_vendor;
1326 softc->disk->d_hba_device = cpi.hba_device;
1327 softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1328 softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1329 disk_create(softc->disk, DISK_VERSION);
1330 mtx_lock(periph->sim->mtx);
1331
1332 xpt_schedule(periph, CAM_PRIORITY_DEV);
1333
1334 return(CAM_REQ_CMP);
1335}
1336
1337static void
1338dastart(struct cam_periph *periph, union ccb *start_ccb)
1339{
1340 struct da_softc *softc;
1341
1342 softc = (struct da_softc *)periph->softc;
1343
1344 switch (softc->state) {
1345 case DA_STATE_NORMAL:
1346 {
1347 /* Pull a buffer from the queue and get going on it */
1348 struct bio *bp;
1349
1350 /*
1351 * See if there is a buf with work for us to do..
1352 */
1353 bp = bioq_first(&softc->bio_queue);
1354 if (periph->immediate_priority <= periph->pinfo.priority) {
1355 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1356 ("queuing for immediate ccb\n"));
1357 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1358 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1359 periph_links.sle);
1360 periph->immediate_priority = CAM_PRIORITY_NONE;
1361 wakeup(&periph->ccb_list);
1362 } else if (bp == NULL) {
1363 xpt_release_ccb(start_ccb);
1364 } else {
1365 u_int8_t tag_code;
1366
1367 bioq_remove(&softc->bio_queue, bp);
1368
1369 if ((bp->bio_flags & BIO_ORDERED) != 0
1370 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1371 softc->flags &= ~DA_FLAG_NEED_OTAG;
1372 softc->ordered_tag_count++;
1373 tag_code = MSG_ORDERED_Q_TAG;
1374 } else {
1375 tag_code = MSG_SIMPLE_Q_TAG;
1376 }
1377 switch (bp->bio_cmd) {
1378 case BIO_READ:
1379 case BIO_WRITE:
1380 scsi_read_write(&start_ccb->csio,
1381 /*retries*/da_retry_count,
1382 /*cbfcnp*/dadone,
1383 /*tag_action*/tag_code,
1384 /*read_op*/bp->bio_cmd
1385 == BIO_READ,
1386 /*byte2*/0,
1387 softc->minimum_cmd_size,
1388 /*lba*/bp->bio_pblkno,
1389 /*block_count*/bp->bio_bcount /
1390 softc->params.secsize,
1391 /*data_ptr*/ bp->bio_data,
1392 /*dxfer_len*/ bp->bio_bcount,
1393 /*sense_len*/SSD_FULL_SIZE,
1394 da_default_timeout * 1000);
1395 break;
1396 case BIO_FLUSH:
1397 /*
1398 * BIO_FLUSH doesn't currently communicate
1399 * range data, so we synchronize the cache
1400 * over the whole disk. We also force
1401 * ordered tag semantics the flush applies
1402 * to all previously queued I/O.
1403 */
1404 scsi_synchronize_cache(&start_ccb->csio,
1405 /*retries*/1,
1406 /*cbfcnp*/dadone,
1407 MSG_ORDERED_Q_TAG,
1408 /*begin_lba*/0,
1409 /*lb_count*/0,
1410 SSD_FULL_SIZE,
1411 da_default_timeout*1000);
1412 break;
1413 }
1414 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1415
1416 /*
1417 * Block out any asyncronous callbacks
1418 * while we touch the pending ccb list.
1419 */
1420 LIST_INSERT_HEAD(&softc->pending_ccbs,
1421 &start_ccb->ccb_h, periph_links.le);
1422 softc->outstanding_cmds++;
1423
1424 /* We expect a unit attention from this device */
1425 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1426 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1427 softc->flags &= ~DA_FLAG_RETRY_UA;
1428 }
1429
1430 start_ccb->ccb_h.ccb_bp = bp;
1431 bp = bioq_first(&softc->bio_queue);
1432
1433 xpt_action(start_ccb);
1434 }
1435
1436 if (bp != NULL) {
1437 /* Have more work to do, so ensure we stay scheduled */
1438 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1439 }
1440 break;
1441 }
1442 case DA_STATE_PROBE:
1443 {
1444 struct ccb_scsiio *csio;
1445 struct scsi_read_capacity_data *rcap;
1446
1447 rcap = (struct scsi_read_capacity_data *)
1448 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1449 if (rcap == NULL) {
1450 printf("dastart: Couldn't malloc read_capacity data\n");
1451 /* da_free_periph??? */
1452 break;
1453 }
1454 csio = &start_ccb->csio;
1455 scsi_read_capacity(csio,
1456 /*retries*/4,
1457 dadone,
1458 MSG_SIMPLE_Q_TAG,
1459 rcap,
1460 SSD_FULL_SIZE,
1461 /*timeout*/5000);
1462 start_ccb->ccb_h.ccb_bp = NULL;
1463 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1464 xpt_action(start_ccb);
1465 break;
1466 }
1467 case DA_STATE_PROBE2:
1468 {
1469 struct ccb_scsiio *csio;
1470 struct scsi_read_capacity_data_long *rcaplong;
1471
1472 rcaplong = (struct scsi_read_capacity_data_long *)
1473 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1474 if (rcaplong == NULL) {
1475 printf("dastart: Couldn't malloc read_capacity data\n");
1476 /* da_free_periph??? */
1477 break;
1478 }
1479 csio = &start_ccb->csio;
1480 scsi_read_capacity_16(csio,
1481 /*retries*/ 4,
1482 /*cbfcnp*/ dadone,
1483 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1484 /*lba*/ 0,
1485 /*reladr*/ 0,
1486 /*pmi*/ 0,
1487 rcaplong,
1488 /*sense_len*/ SSD_FULL_SIZE,
1489 /*timeout*/ 60000);
1490 start_ccb->ccb_h.ccb_bp = NULL;
1491 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1492 xpt_action(start_ccb);
1493 break;
1494 }
1495 }
1496}
1497
1498static int
1499cmd6workaround(union ccb *ccb)
1500{
1501 struct scsi_rw_6 cmd6;
1502 struct scsi_rw_10 *cmd10;
1503 struct da_softc *softc;
1504 u_int8_t *cdb;
1505 int frozen;
1506
1507 cdb = ccb->csio.cdb_io.cdb_bytes;
1508
1509 /* Translation only possible if CDB is an array and cmd is R/W6 */
1510 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1511 (*cdb != READ_6 && *cdb != WRITE_6))
1512 return 0;
1513
1514 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1515 "increasing minimum_cmd_size to 10.\n");
1516 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1517 softc->minimum_cmd_size = 10;
1518
1519 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1520 cmd10 = (struct scsi_rw_10 *)cdb;
1521 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1522 cmd10->byte2 = 0;
1523 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1524 cmd10->reserved = 0;
1525 scsi_ulto2b(cmd6.length, cmd10->length);
1526 cmd10->control = cmd6.control;
1527 ccb->csio.cdb_len = sizeof(*cmd10);
1528
1529 /* Requeue request, unfreezing queue if necessary */
1530 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1531 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1532 xpt_action(ccb);
1533 if (frozen) {
1534 cam_release_devq(ccb->ccb_h.path,
1535 /*relsim_flags*/0,
1536 /*reduction*/0,
1537 /*timeout*/0,
1538 /*getcount_only*/0);
1539 }
1540 return (ERESTART);
1541}
1542
1543static void
1544dadone(struct cam_periph *periph, union ccb *done_ccb)
1545{
1546 struct da_softc *softc;
1547 struct ccb_scsiio *csio;
1548 u_int32_t priority;
1549
1550 softc = (struct da_softc *)periph->softc;
1551 priority = done_ccb->ccb_h.pinfo.priority;
1552 csio = &done_ccb->csio;
1553 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1554 case DA_CCB_BUFFER_IO:
1555 {
1556 struct bio *bp;
1557
1558 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1559 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1560 int error;
1561 int sf;
1562
1563 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1564 sf = SF_RETRY_UA;
1565 else
1566 sf = 0;
1567
1568 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1569 if (error == ERESTART) {
1570 /*
1571 * A retry was scheuled, so
1572 * just return.
1573 */
1574 return;
1575 }
1576 if (error != 0) {
1577
1578 if (error == ENXIO) {
1579 /*
1580 * Catastrophic error. Mark our pack as
1581 * invalid.
1582 */
1583 /*
1584 * XXX See if this is really a media
1585 * XXX change first?
1586 */
1587 xpt_print(periph->path,
1588 "Invalidating pack\n");
1589 softc->flags |= DA_FLAG_PACK_INVALID;
1590 }
1591
1592 /*
1593 * return all queued I/O with EIO, so that
1594 * the client can retry these I/Os in the
1595 * proper order should it attempt to recover.
1596 */
1597 bioq_flush(&softc->bio_queue, NULL, EIO);
1598 bp->bio_error = error;
1599 bp->bio_resid = bp->bio_bcount;
1600 bp->bio_flags |= BIO_ERROR;
1601 } else {
1602 bp->bio_resid = csio->resid;
1603 bp->bio_error = 0;
1604 if (bp->bio_resid != 0)
1605 bp->bio_flags |= BIO_ERROR;
1606 }
1607 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1608 cam_release_devq(done_ccb->ccb_h.path,
1609 /*relsim_flags*/0,
1610 /*reduction*/0,
1611 /*timeout*/0,
1612 /*getcount_only*/0);
1613 } else {
1614 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1615 panic("REQ_CMP with QFRZN");
1616 bp->bio_resid = csio->resid;
1617 if (csio->resid > 0)
1618 bp->bio_flags |= BIO_ERROR;
1619 }
1620
1621 /*
1622 * Block out any asyncronous callbacks
1623 * while we touch the pending ccb list.
1624 */
1625 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1626 softc->outstanding_cmds--;
1627 if (softc->outstanding_cmds == 0)
1628 softc->flags |= DA_FLAG_WENT_IDLE;
1629
1630 biodone(bp);
1631 break;
1632 }
1633 case DA_CCB_PROBE:
1634 case DA_CCB_PROBE2:
1635 {
1636 struct scsi_read_capacity_data *rdcap;
1637 struct scsi_read_capacity_data_long *rcaplong;
1638 char announce_buf[80];
1639
1640 rdcap = NULL;
1641 rcaplong = NULL;
1642 if (softc->state == DA_STATE_PROBE)
1643 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1644 else
1645 rcaplong = (struct scsi_read_capacity_data_long *)
1646 csio->data_ptr;
1647
1648 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1649 struct disk_params *dp;
1650 uint32_t block_size;
1651 uint64_t maxsector;
1652
1653 if (softc->state == DA_STATE_PROBE) {
1654 block_size = scsi_4btoul(rdcap->length);
1655 maxsector = scsi_4btoul(rdcap->addr);
1656
1657 /*
1658 * According to SBC-2, if the standard 10
1659 * byte READ CAPACITY command returns 2^32,
1660 * we should issue the 16 byte version of
1661 * the command, since the device in question
1662 * has more sectors than can be represented
1663 * with the short version of the command.
1664 */
1665 if (maxsector == 0xffffffff) {
1666 softc->state = DA_STATE_PROBE2;
1667 free(rdcap, M_SCSIDA);
1668 xpt_release_ccb(done_ccb);
1669 xpt_schedule(periph, priority);
1670 return;
1671 }
1672 } else {
1673 block_size = scsi_4btoul(rcaplong->length);
1674 maxsector = scsi_8btou64(rcaplong->addr);
1675 }
1676
1677 /*
1678 * Because GEOM code just will panic us if we
1679 * give them an 'illegal' value we'll avoid that
1680 * here.
1681 */
1682 if (block_size == 0 && maxsector == 0) {
1683 snprintf(announce_buf, sizeof(announce_buf),
1684 "0MB (no media?)");
1685 } else if (block_size >= MAXPHYS || block_size == 0) {
1686 xpt_print(periph->path,
1687 "unsupportable block size %ju\n",
1688 (uintmax_t) block_size);
1689 announce_buf[0] = '\0';
1690 cam_periph_invalidate(periph);
1691 } else {
1692 dasetgeom(periph, block_size, maxsector);
1693 dp = &softc->params;
1694 snprintf(announce_buf, sizeof(announce_buf),
1695 "%juMB (%ju %u byte sectors: %dH %dS/T "
1696 "%dC)", (uintmax_t)
1697 (((uintmax_t)dp->secsize *
1698 dp->sectors) / (1024*1024)),
1699 (uintmax_t)dp->sectors,
1700 dp->secsize, dp->heads,
1701 dp->secs_per_track, dp->cylinders);
1702 }
1703 } else {
1704 int error;
1705
1706 announce_buf[0] = '\0';
1707
1708 /*
1709 * Retry any UNIT ATTENTION type errors. They
1710 * are expected at boot.
1711 */
1712 error = daerror(done_ccb, CAM_RETRY_SELTO,
1713 SF_RETRY_UA|SF_NO_PRINT);
1714 if (error == ERESTART) {
1715 /*
1716 * A retry was scheuled, so
1717 * just return.
1718 */
1719 return;
1720 } else if (error != 0) {
1721 struct scsi_sense_data *sense;
1722 int asc, ascq;
1723 int sense_key, error_code;
1724 int have_sense;
1725 cam_status status;
1726 struct ccb_getdev cgd;
1727
1728 /* Don't wedge this device's queue */
1729 status = done_ccb->ccb_h.status;
1730 if ((status & CAM_DEV_QFRZN) != 0)
1731 cam_release_devq(done_ccb->ccb_h.path,
1732 /*relsim_flags*/0,
1733 /*reduction*/0,
1734 /*timeout*/0,
1735 /*getcount_only*/0);
1736
1737
1738 xpt_setup_ccb(&cgd.ccb_h,
1739 done_ccb->ccb_h.path,
1740 CAM_PRIORITY_NORMAL);
1741 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1742 xpt_action((union ccb *)&cgd);
1743
1744 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1745 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1746 || ((status & CAM_AUTOSNS_VALID) == 0))
1747 have_sense = FALSE;
1748 else
1749 have_sense = TRUE;
1750
1751 if (have_sense) {
1752 sense = &csio->sense_data;
1753 scsi_extract_sense(sense, &error_code,
1754 &sense_key,
1755 &asc, &ascq);
1756 }
1757 /*
1758 * Attach to anything that claims to be a
1759 * direct access or optical disk device,
1760 * as long as it doesn't return a "Logical
1761 * unit not supported" (0x25) error.
1762 */
1763 if ((have_sense) && (asc != 0x25)
1764 && (error_code == SSD_CURRENT_ERROR)) {
1765 const char *sense_key_desc;
1766 const char *asc_desc;
1767
1768 scsi_sense_desc(sense_key, asc, ascq,
1769 &cgd.inq_data,
1770 &sense_key_desc,
1771 &asc_desc);
1772 snprintf(announce_buf,
1773 sizeof(announce_buf),
1774 "Attempt to query device "
1775 "size failed: %s, %s",
1776 sense_key_desc,
1777 asc_desc);
1778 } else {
1779 if (have_sense)
1780 scsi_sense_print(
1781 &done_ccb->csio);
1782 else {
1783 xpt_print(periph->path,
1784 "got CAM status %#x\n",
1785 done_ccb->ccb_h.status);
1786 }
1787
1788 xpt_print(periph->path, "fatal error, "
1789 "failed to attach to device\n");
1790
1791 /*
1792 * Free up resources.
1793 */
1794 cam_periph_invalidate(periph);
1795 }
1796 }
1797 }
1798 free(csio->data_ptr, M_SCSIDA);
1799 if (announce_buf[0] != '\0') {
1800 xpt_announce_periph(periph, announce_buf);
1801 /*
1802 * Create our sysctl variables, now that we know
1803 * we have successfully attached.
1804 */
1805 (void) cam_periph_acquire(periph); /* increase the refcount */
1806 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1807 }
1808 softc->state = DA_STATE_NORMAL;
1809 /*
1810 * Since our peripheral may be invalidated by an error
1811 * above or an external event, we must release our CCB
1812 * before releasing the probe lock on the peripheral.
1813 * The peripheral will only go away once the last lock
1814 * is removed, and we need it around for the CCB release
1815 * operation.
1816 */
1817 xpt_release_ccb(done_ccb);
1818 cam_periph_unhold(periph);
1819 return;
1820 }
1821 case DA_CCB_WAITING:
1822 {
1823 /* Caller will release the CCB */
1824 wakeup(&done_ccb->ccb_h.cbfcnp);
1825 return;
1826 }
1827 case DA_CCB_DUMP:
1828 /* No-op. We're polling */
1829 return;
1830 default:
1831 break;
1832 }
1833 xpt_release_ccb(done_ccb);
1834}
1835
1836static int
1837daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1838{
1839 struct da_softc *softc;
1840 struct cam_periph *periph;
1841 int error;
1842
1843 periph = xpt_path_periph(ccb->ccb_h.path);
1844 softc = (struct da_softc *)periph->softc;
1845
1846 /*
1847 * Automatically detect devices that do not support
1848 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1849 */
1850 error = 0;
1851 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1852 error = cmd6workaround(ccb);
1853 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1854 CAM_SCSI_STATUS_ERROR)
1855 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1856 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1857 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1858 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1859 int sense_key, error_code, asc, ascq;
1860
1861 scsi_extract_sense(&ccb->csio.sense_data,
1862 &error_code, &sense_key, &asc, &ascq);
1863 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1864 error = cmd6workaround(ccb);
1865 }
1866 if (error == ERESTART)
1867 return (ERESTART);
1868
1869 /*
1870 * XXX
1871 * Until we have a better way of doing pack validation,
1872 * don't treat UAs as errors.
1873 */
1874 sense_flags |= SF_RETRY_UA;
1875 return(cam_periph_error(ccb, cam_flags, sense_flags,
1876 &softc->saved_ccb));
1877}
1878
1879static void
1880daprevent(struct cam_periph *periph, int action)
1881{
1882 struct da_softc *softc;
1883 union ccb *ccb;
1884 int error;
1885
1886 softc = (struct da_softc *)periph->softc;
1887
1888 if (((action == PR_ALLOW)
1889 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1890 || ((action == PR_PREVENT)
1891 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1892 return;
1893 }
1894
1895 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1896
1897 scsi_prevent(&ccb->csio,
1898 /*retries*/1,
1899 /*cbcfp*/dadone,
1900 MSG_SIMPLE_Q_TAG,
1901 action,
1902 SSD_FULL_SIZE,
1903 5000);
1904
1905 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1906 SF_RETRY_UA, softc->disk->d_devstat);
1907
1908 if (error == 0) {
1909 if (action == PR_ALLOW)
1910 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1911 else
1912 softc->flags |= DA_FLAG_PACK_LOCKED;
1913 }
1914
1915 xpt_release_ccb(ccb);
1916}
1917
1918static int
1919dagetcapacity(struct cam_periph *periph)
1920{
1921 struct da_softc *softc;
1922 union ccb *ccb;
1923 struct scsi_read_capacity_data *rcap;
1924 struct scsi_read_capacity_data_long *rcaplong;
1925 uint32_t block_len;
1926 uint64_t maxsector;
1927 int error;
1928 u_int32_t sense_flags;
1929
1930 softc = (struct da_softc *)periph->softc;
1931 block_len = 0;
1932 maxsector = 0;
1933 error = 0;
1934 sense_flags = SF_RETRY_UA;
1935 if (softc->flags & DA_FLAG_PACK_REMOVABLE)
1936 sense_flags |= SF_NO_PRINT;
1937
1938 /* Do a read capacity */
1939 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1940 M_SCSIDA,
1941 M_NOWAIT);
1942 if (rcap == NULL)
1943 return (ENOMEM);
1944
1945 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1946 scsi_read_capacity(&ccb->csio,
1947 /*retries*/4,
1948 /*cbfncp*/dadone,
1949 MSG_SIMPLE_Q_TAG,
1950 rcap,
1951 SSD_FULL_SIZE,
1952 /*timeout*/60000);
1953 ccb->ccb_h.ccb_bp = NULL;
1954
1955 error = cam_periph_runccb(ccb, daerror,
1956 /*cam_flags*/CAM_RETRY_SELTO,
1957 sense_flags,
1958 softc->disk->d_devstat);
1959
1960 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1961 cam_release_devq(ccb->ccb_h.path,
1962 /*relsim_flags*/0,
1963 /*reduction*/0,
1964 /*timeout*/0,
1965 /*getcount_only*/0);
1966
1967 if (error == 0) {
1968 block_len = scsi_4btoul(rcap->length);
1969 maxsector = scsi_4btoul(rcap->addr);
1970
1971 if (maxsector != 0xffffffff)
1972 goto done;
1973 } else
1974 goto done;
1975
1976 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1977
1978 scsi_read_capacity_16(&ccb->csio,
1979 /*retries*/ 4,
1980 /*cbfcnp*/ dadone,
1981 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1982 /*lba*/ 0,
1983 /*reladr*/ 0,
1984 /*pmi*/ 0,
1985 rcaplong,
1986 /*sense_len*/ SSD_FULL_SIZE,
1987 /*timeout*/ 60000);
1988 ccb->ccb_h.ccb_bp = NULL;
1989
1990 error = cam_periph_runccb(ccb, daerror,
1991 /*cam_flags*/CAM_RETRY_SELTO,
1992 sense_flags,
1993 softc->disk->d_devstat);
1994
1995 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1996 cam_release_devq(ccb->ccb_h.path,
1997 /*relsim_flags*/0,
1998 /*reduction*/0,
1999 /*timeout*/0,
2000 /*getcount_only*/0);
2001
2002 if (error == 0) {
2003 block_len = scsi_4btoul(rcaplong->length);
2004 maxsector = scsi_8btou64(rcaplong->addr);
2005 }
2006
2007done:
2008
2009 if (error == 0) {
2010 if (block_len >= MAXPHYS || block_len == 0) {
2011 xpt_print(periph->path,
2012 "unsupportable block size %ju\n",
2013 (uintmax_t) block_len);
2014 error = EINVAL;
2015 } else
2016 dasetgeom(periph, block_len, maxsector);
2017 }
2018
2019 xpt_release_ccb(ccb);
2020
2021 free(rcap, M_SCSIDA);
2022
2023 return (error);
2024}
2025
2026static void
2027dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
2028{
2029 struct ccb_calc_geometry ccg;
2030 struct da_softc *softc;
2031 struct disk_params *dp;
2032
2033 softc = (struct da_softc *)periph->softc;
2034
2035 dp = &softc->params;
2036 dp->secsize = block_len;
2037 dp->sectors = maxsector + 1;
2038 /*
2039 * Have the controller provide us with a geometry
2040 * for this disk. The only time the geometry
2041 * matters is when we boot and the controller
2042 * is the only one knowledgeable enough to come
2043 * up with something that will make this a bootable
2044 * device.
2045 */
2046 xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2047 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2048 ccg.block_size = dp->secsize;
2049 ccg.volume_size = dp->sectors;
2050 ccg.heads = 0;
2051 ccg.secs_per_track = 0;
2052 ccg.cylinders = 0;
2053 xpt_action((union ccb*)&ccg);
2054 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2055 /*
2056 * We don't know what went wrong here- but just pick
2057 * a geometry so we don't have nasty things like divide
2058 * by zero.
2059 */
2060 dp->heads = 255;
2061 dp->secs_per_track = 255;
2062 dp->cylinders = dp->sectors / (255 * 255);
2063 if (dp->cylinders == 0) {
2064 dp->cylinders = 1;
2065 }
2066 } else {
2067 dp->heads = ccg.heads;
2068 dp->secs_per_track = ccg.secs_per_track;
2069 dp->cylinders = ccg.cylinders;
2070 }
2071}
2072
2073static void
2074dasendorderedtag(void *arg)
2075{
2076 struct da_softc *softc = arg;
2077
2078 if (da_send_ordered) {
2079 if ((softc->ordered_tag_count == 0)
2080 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2081 softc->flags |= DA_FLAG_NEED_OTAG;
2082 }
2083 if (softc->outstanding_cmds > 0)
2084 softc->flags &= ~DA_FLAG_WENT_IDLE;
2085
2086 softc->ordered_tag_count = 0;
2087 }
2088 /* Queue us up again */
2089 callout_reset(&softc->sendordered_c,
2090 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2091 dasendorderedtag, softc);
2092}
2093
2094/*
2095 * Step through all DA peripheral drivers, and if the device is still open,
2096 * sync the disk cache to physical media.
2097 */
2098static void
2099dashutdown(void * arg, int howto)
2100{
2101 struct cam_periph *periph;
2102 struct da_softc *softc;
2103
2104 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2105 union ccb ccb;
2106
2107 cam_periph_lock(periph);
2108 softc = (struct da_softc *)periph->softc;
2109
2110 /*
2111 * We only sync the cache if the drive is still open, and
2112 * if the drive is capable of it..
2113 */
2114 if (((softc->flags & DA_FLAG_OPEN) == 0)
2115 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2116 cam_periph_unlock(periph);
2117 continue;
2118 }
2119
2120 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2121
2122 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2123 scsi_synchronize_cache(&ccb.csio,
2124 /*retries*/1,
2125 /*cbfcnp*/dadone,
2126 MSG_SIMPLE_Q_TAG,
2127 /*begin_lba*/0, /* whole disk */
2128 /*lb_count*/0,
2129 SSD_FULL_SIZE,
2130 60 * 60 * 1000);
2131
2132 xpt_polled_action(&ccb);
2133
2134 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2135 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2136 CAM_SCSI_STATUS_ERROR)
2137 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2138 int error_code, sense_key, asc, ascq;
2139
2140 scsi_extract_sense(&ccb.csio.sense_data,
2141 &error_code, &sense_key,
2142 &asc, &ascq);
2143
2144 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2145 scsi_sense_print(&ccb.csio);
2146 } else {
2147 xpt_print(periph->path, "Synchronize "
2148 "cache failed, status == 0x%x, scsi status "
2149 "== 0x%x\n", ccb.ccb_h.status,
2150 ccb.csio.scsi_status);
2151 }
2152 }
2153
2154 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2155 cam_release_devq(ccb.ccb_h.path,
2156 /*relsim_flags*/0,
2157 /*reduction*/0,
2158 /*timeout*/0,
2159 /*getcount_only*/0);
2160 cam_periph_unlock(periph);
2161 }
2162}
2163
2164#else /* !_KERNEL */
2165
2166/*
2167 * XXX This is only left out of the kernel build to silence warnings. If,
2168 * for some reason this function is used in the kernel, the ifdefs should
2169 * be moved so it is included both in the kernel and userland.
2170 */
2171void
2172scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2173 void (*cbfcnp)(struct cam_periph *, union ccb *),
2174 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2175 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2176 u_int32_t timeout)
2177{
2178 struct scsi_format_unit *scsi_cmd;
2179
2180 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2181 scsi_cmd->opcode = FORMAT_UNIT;
2182 scsi_cmd->byte2 = byte2;
2183 scsi_ulto2b(ileave, scsi_cmd->interleave);
2184
2185 cam_fill_csio(csio,
2186 retries,
2187 cbfcnp,
2188 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2189 tag_action,
2190 data_ptr,
2191 dxfer_len,
2192 sense_len,
2193 sizeof(*scsi_cmd),
2194 timeout);
2195}
2196
2197#endif /* _KERNEL */
2 * Implementation of SCSI Direct Access Peripheral driver for CAM.
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/cam/scsi/scsi_da.c 220644 2011-04-14 21:25:32Z mav $");
31
32#include <sys/param.h>
33
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bio.h>
38#include <sys/sysctl.h>
39#include <sys/taskqueue.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/conf.h>
43#include <sys/devicestat.h>
44#include <sys/eventhandler.h>
45#include <sys/malloc.h>
46#include <sys/cons.h>
47#include <geom/geom_disk.h>
48#endif /* _KERNEL */
49
50#ifndef _KERNEL
51#include <stdio.h>
52#include <string.h>
53#endif /* _KERNEL */
54
55#include <cam/cam.h>
56#include <cam/cam_ccb.h>
57#include <cam/cam_periph.h>
58#include <cam/cam_xpt_periph.h>
59#include <cam/cam_sim.h>
60
61#include <cam/scsi/scsi_message.h>
62
63#ifndef _KERNEL
64#include <cam/scsi/scsi_da.h>
65#endif /* !_KERNEL */
66
67#ifdef _KERNEL
68typedef enum {
69 DA_STATE_PROBE,
70 DA_STATE_PROBE2,
71 DA_STATE_NORMAL
72} da_state;
73
74typedef enum {
75 DA_FLAG_PACK_INVALID = 0x001,
76 DA_FLAG_NEW_PACK = 0x002,
77 DA_FLAG_PACK_LOCKED = 0x004,
78 DA_FLAG_PACK_REMOVABLE = 0x008,
79 DA_FLAG_TAGGED_QUEUING = 0x010,
80 DA_FLAG_NEED_OTAG = 0x020,
81 DA_FLAG_WENT_IDLE = 0x040,
82 DA_FLAG_RETRY_UA = 0x080,
83 DA_FLAG_OPEN = 0x100,
84 DA_FLAG_SCTX_INIT = 0x200
85} da_flags;
86
87typedef enum {
88 DA_Q_NONE = 0x00,
89 DA_Q_NO_SYNC_CACHE = 0x01,
90 DA_Q_NO_6_BYTE = 0x02,
91 DA_Q_NO_PREVENT = 0x04
92} da_quirks;
93
94typedef enum {
95 DA_CCB_PROBE = 0x01,
96 DA_CCB_PROBE2 = 0x02,
97 DA_CCB_BUFFER_IO = 0x03,
98 DA_CCB_WAITING = 0x04,
99 DA_CCB_DUMP = 0x05,
100 DA_CCB_TYPE_MASK = 0x0F,
101 DA_CCB_RETRY_UA = 0x10
102} da_ccb_state;
103
104/* Offsets into our private area for storing information */
105#define ccb_state ppriv_field0
106#define ccb_bp ppriv_ptr1
107
108struct disk_params {
109 u_int8_t heads;
110 u_int32_t cylinders;
111 u_int8_t secs_per_track;
112 u_int32_t secsize; /* Number of bytes/sector */
113 u_int64_t sectors; /* total number sectors */
114};
115
116struct da_softc {
117 struct bio_queue_head bio_queue;
118 SLIST_ENTRY(da_softc) links;
119 LIST_HEAD(, ccb_hdr) pending_ccbs;
120 da_state state;
121 da_flags flags;
122 da_quirks quirks;
123 int minimum_cmd_size;
124 int ordered_tag_count;
125 int outstanding_cmds;
126 struct disk_params params;
127 struct disk *disk;
128 union ccb saved_ccb;
129 struct task sysctl_task;
130 struct sysctl_ctx_list sysctl_ctx;
131 struct sysctl_oid *sysctl_tree;
132 struct callout sendordered_c;
133 uint64_t wwpn;
134};
135
136struct da_quirk_entry {
137 struct scsi_inquiry_pattern inq_pat;
138 da_quirks quirks;
139};
140
141static const char quantum[] = "QUANTUM";
142static const char microp[] = "MICROP";
143
144static struct da_quirk_entry da_quirk_table[] =
145{
146 /* SPI, FC devices */
147 {
148 /*
149 * Fujitsu M2513A MO drives.
150 * Tested devices: M2513A2 firmware versions 1200 & 1300.
151 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
152 * Reported by: W.Scholten <whs@xs4all.nl>
153 */
154 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
155 /*quirks*/ DA_Q_NO_SYNC_CACHE
156 },
157 {
158 /* See above. */
159 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
160 /*quirks*/ DA_Q_NO_SYNC_CACHE
161 },
162 {
163 /*
164 * This particular Fujitsu drive doesn't like the
165 * synchronize cache command.
166 * Reported by: Tom Jackson <toj@gorilla.net>
167 */
168 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
169 /*quirks*/ DA_Q_NO_SYNC_CACHE
170 },
171 {
172 /*
173 * This drive doesn't like the synchronize cache command
174 * either. Reported by: Matthew Jacob <mjacob@feral.com>
175 * in NetBSD PR kern/6027, August 24, 1998.
176 */
177 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
178 /*quirks*/ DA_Q_NO_SYNC_CACHE
179 },
180 {
181 /*
182 * This drive doesn't like the synchronize cache command
183 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
184 * (PR 8882).
185 */
186 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
187 /*quirks*/ DA_Q_NO_SYNC_CACHE
188 },
189 {
190 /*
191 * Doesn't like the synchronize cache command.
192 * Reported by: Blaz Zupan <blaz@gold.amis.net>
193 */
194 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
195 /*quirks*/ DA_Q_NO_SYNC_CACHE
196 },
197 {
198 /*
199 * Doesn't like the synchronize cache command.
200 * Reported by: Blaz Zupan <blaz@gold.amis.net>
201 */
202 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
203 /*quirks*/ DA_Q_NO_SYNC_CACHE
204 },
205 {
206 /*
207 * Doesn't like the synchronize cache command.
208 */
209 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
210 /*quirks*/ DA_Q_NO_SYNC_CACHE
211 },
212 {
213 /*
214 * Doesn't like the synchronize cache command.
215 * Reported by: walter@pelissero.de
216 */
217 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
218 /*quirks*/ DA_Q_NO_SYNC_CACHE
219 },
220 {
221 /*
222 * Doesn't work correctly with 6 byte reads/writes.
223 * Returns illegal request, and points to byte 9 of the
224 * 6-byte CDB.
225 * Reported by: Adam McDougall <bsdx@spawnet.com>
226 */
227 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
228 /*quirks*/ DA_Q_NO_6_BYTE
229 },
230 {
231 /* See above. */
232 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
233 /*quirks*/ DA_Q_NO_6_BYTE
234 },
235 {
236 /*
237 * Doesn't like the synchronize cache command.
238 * Reported by: walter@pelissero.de
239 */
240 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
241 /*quirks*/ DA_Q_NO_SYNC_CACHE
242 },
243 {
244 /*
245 * The CISS RAID controllers do not support SYNC_CACHE
246 */
247 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
248 /*quirks*/ DA_Q_NO_SYNC_CACHE
249 },
250 /* USB mass storage devices supported by umass(4) */
251 {
252 /*
253 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
254 * PR: kern/51675
255 */
256 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
257 /*quirks*/ DA_Q_NO_SYNC_CACHE
258 },
259 {
260 /*
261 * Power Quotient Int. (PQI) USB flash key
262 * PR: kern/53067
263 */
264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
265 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
266 },
267 {
268 /*
269 * Creative Nomad MUVO mp3 player (USB)
270 * PR: kern/53094
271 */
272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
273 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
274 },
275 {
276 /*
277 * Jungsoft NEXDISK USB flash key
278 * PR: kern/54737
279 */
280 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
281 /*quirks*/ DA_Q_NO_SYNC_CACHE
282 },
283 {
284 /*
285 * FreeDik USB Mini Data Drive
286 * PR: kern/54786
287 */
288 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
289 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
290 },
291 {
292 /*
293 * Sigmatel USB Flash MP3 Player
294 * PR: kern/57046
295 */
296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
297 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
298 },
299 {
300 /*
301 * Neuros USB Digital Audio Computer
302 * PR: kern/63645
303 */
304 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
305 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
306 },
307 {
308 /*
309 * SEAGRAND NP-900 MP3 Player
310 * PR: kern/64563
311 */
312 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
313 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
314 },
315 {
316 /*
317 * iRiver iFP MP3 player (with UMS Firmware)
318 * PR: kern/54881, i386/63941, kern/66124
319 */
320 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
321 /*quirks*/ DA_Q_NO_SYNC_CACHE
322 },
323 {
324 /*
325 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
326 * PR: kern/70158
327 */
328 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
329 /*quirks*/ DA_Q_NO_SYNC_CACHE
330 },
331 {
332 /*
333 * ZICPlay USB MP3 Player with FM
334 * PR: kern/75057
335 */
336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
337 /*quirks*/ DA_Q_NO_SYNC_CACHE
338 },
339 {
340 /*
341 * TEAC USB floppy mechanisms
342 */
343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
344 /*quirks*/ DA_Q_NO_SYNC_CACHE
345 },
346 {
347 /*
348 * Kingston DataTraveler II+ USB Pen-Drive.
349 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
350 */
351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
352 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
353 },
354 {
355 /*
356 * Motorola E398 Mobile Phone (TransFlash memory card).
357 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
358 * PR: usb/89889
359 */
360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
361 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
362 },
363 {
364 /*
365 * Qware BeatZkey! Pro
366 * PR: usb/79164
367 */
368 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
369 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
370 },
371 {
372 /*
373 * Time DPA20B 1GB MP3 Player
374 * PR: usb/81846
375 */
376 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
377 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
378 },
379 {
380 /*
381 * Samsung USB key 128Mb
382 * PR: usb/90081
383 */
384 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
385 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
386 },
387 {
388 /*
389 * Kingston DataTraveler 2.0 USB Flash memory.
390 * PR: usb/89196
391 */
392 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
393 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
394 },
395 {
396 /*
397 * Creative MUVO Slim mp3 player (USB)
398 * PR: usb/86131
399 */
400 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
401 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
402 },
403 {
404 /*
405 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
406 * PR: usb/80487
407 */
408 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
409 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
410 },
411 {
412 /*
413 * SanDisk Micro Cruzer 128MB
414 * PR: usb/75970
415 */
416 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
417 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
418 },
419 {
420 /*
421 * TOSHIBA TransMemory USB sticks
422 * PR: kern/94660
423 */
424 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
425 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
426 },
427 {
428 /*
429 * PNY USB Flash keys
430 * PR: usb/75578, usb/72344, usb/65436
431 */
432 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
433 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
434 },
435 {
436 /*
437 * Genesys 6-in-1 Card Reader
438 * PR: usb/94647
439 */
440 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
441 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
442 },
443 {
444 /*
445 * Rekam Digital CAMERA
446 * PR: usb/98713
447 */
448 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
449 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
450 },
451 {
452 /*
453 * iRiver H10 MP3 player
454 * PR: usb/102547
455 */
456 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
457 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
458 },
459 {
460 /*
461 * iRiver U10 MP3 player
462 * PR: usb/92306
463 */
464 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
465 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
466 },
467 {
468 /*
469 * X-Micro Flash Disk
470 * PR: usb/96901
471 */
472 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
473 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
474 },
475 {
476 /*
477 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
478 * PR: usb/96546
479 */
480 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
481 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
482 },
483 {
484 /*
485 * Denver MP3 player
486 * PR: usb/107101
487 */
488 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
489 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
490 },
491 {
492 /*
493 * Philips USB Key Audio KEY013
494 * PR: usb/68412
495 */
496 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
497 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
498 },
499 {
500 /*
501 * JNC MP3 Player
502 * PR: usb/94439
503 */
504 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
505 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
506 },
507 {
508 /*
509 * SAMSUNG MP0402H
510 * PR: usb/108427
511 */
512 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
513 /*quirks*/ DA_Q_NO_SYNC_CACHE
514 },
515 {
516 /*
517 * I/O Magic USB flash - Giga Bank
518 * PR: usb/108810
519 */
520 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
521 /*quirks*/ DA_Q_NO_SYNC_CACHE
522 },
523 {
524 /*
525 * JoyFly 128mb USB Flash Drive
526 * PR: 96133
527 */
528 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
529 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
530 },
531 {
532 /*
533 * ChipsBnk usb stick
534 * PR: 103702
535 */
536 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
537 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
538 },
539 {
540 /*
541 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
542 * PR: 129858
543 */
544 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
545 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
546 },
547 {
548 /*
549 * Samsung YP-U3 mp3-player
550 * PR: 125398
551 */
552 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
553 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
554 },
555 {
556 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
557 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
558 },
559 {
560 /*
561 * Sony Cyber-Shot DSC cameras
562 * PR: usb/137035
563 */
564 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
565 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
566 }
567};
568
569static disk_strategy_t dastrategy;
570static dumper_t dadump;
571static periph_init_t dainit;
572static void daasync(void *callback_arg, u_int32_t code,
573 struct cam_path *path, void *arg);
574static void dasysctlinit(void *context, int pending);
575static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
576static periph_ctor_t daregister;
577static periph_dtor_t dacleanup;
578static periph_start_t dastart;
579static periph_oninv_t daoninvalidate;
580static void dadone(struct cam_periph *periph,
581 union ccb *done_ccb);
582static int daerror(union ccb *ccb, u_int32_t cam_flags,
583 u_int32_t sense_flags);
584static void daprevent(struct cam_periph *periph, int action);
585static int dagetcapacity(struct cam_periph *periph);
586static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
587 uint64_t maxsector);
588static timeout_t dasendorderedtag;
589static void dashutdown(void *arg, int howto);
590
591#ifndef DA_DEFAULT_TIMEOUT
592#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
593#endif
594
595#ifndef DA_DEFAULT_RETRY
596#define DA_DEFAULT_RETRY 4
597#endif
598
599#ifndef DA_DEFAULT_SEND_ORDERED
600#define DA_DEFAULT_SEND_ORDERED 1
601#endif
602
603
604static int da_retry_count = DA_DEFAULT_RETRY;
605static int da_default_timeout = DA_DEFAULT_TIMEOUT;
606static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
607
608SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
609 "CAM Direct Access Disk driver");
610SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
611 &da_retry_count, 0, "Normal I/O retry count");
612TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
613SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
614 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
615TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
616SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
617 &da_send_ordered, 0, "Send Ordered Tags");
618TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
619
620/*
621 * DA_ORDEREDTAG_INTERVAL determines how often, relative
622 * to the default timeout, we check to see whether an ordered
623 * tagged transaction is appropriate to prevent simple tag
624 * starvation. Since we'd like to ensure that there is at least
625 * 1/2 of the timeout length left for a starved transaction to
626 * complete after we've sent an ordered tag, we must poll at least
627 * four times in every timeout period. This takes care of the worst
628 * case where a starved transaction starts during an interval that
629 * meets the requirement "don't send an ordered tag" test so it takes
630 * us two intervals to determine that a tag must be sent.
631 */
632#ifndef DA_ORDEREDTAG_INTERVAL
633#define DA_ORDEREDTAG_INTERVAL 4
634#endif
635
636static struct periph_driver dadriver =
637{
638 dainit, "da",
639 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
640};
641
642PERIPHDRIVER_DECLARE(da, dadriver);
643
644MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
645
646static int
647daopen(struct disk *dp)
648{
649 struct cam_periph *periph;
650 struct da_softc *softc;
651 int unit;
652 int error;
653
654 periph = (struct cam_periph *)dp->d_drv1;
655 if (periph == NULL) {
656 return (ENXIO);
657 }
658
659 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
660 return(ENXIO);
661 }
662
663 cam_periph_lock(periph);
664 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
665 cam_periph_unlock(periph);
666 cam_periph_release(periph);
667 return (error);
668 }
669
670 unit = periph->unit_number;
671 softc = (struct da_softc *)periph->softc;
672 softc->flags |= DA_FLAG_OPEN;
673
674 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
675 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
676 unit));
677
678 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
679 /* Invalidate our pack information. */
680 softc->flags &= ~DA_FLAG_PACK_INVALID;
681 }
682
683 error = dagetcapacity(periph);
684
685 if (error == 0) {
686
687 softc->disk->d_sectorsize = softc->params.secsize;
688 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
689 /* XXX: these are not actually "firmware" values, so they may be wrong */
690 softc->disk->d_fwsectors = softc->params.secs_per_track;
691 softc->disk->d_fwheads = softc->params.heads;
692 softc->disk->d_devstat->block_size = softc->params.secsize;
693 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
694
695 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
696 (softc->quirks & DA_Q_NO_PREVENT) == 0)
697 daprevent(periph, PR_PREVENT);
698 } else
699 softc->flags &= ~DA_FLAG_OPEN;
700
701 cam_periph_unhold(periph);
702 cam_periph_unlock(periph);
703
704 if (error != 0) {
705 cam_periph_release(periph);
706 }
707 return (error);
708}
709
710static int
711daclose(struct disk *dp)
712{
713 struct cam_periph *periph;
714 struct da_softc *softc;
715 int error;
716
717 periph = (struct cam_periph *)dp->d_drv1;
718 if (periph == NULL)
719 return (ENXIO);
720
721 cam_periph_lock(periph);
722 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
723 cam_periph_unlock(periph);
724 cam_periph_release(periph);
725 return (error);
726 }
727
728 softc = (struct da_softc *)periph->softc;
729
730 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
731 union ccb *ccb;
732
733 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
734
735 scsi_synchronize_cache(&ccb->csio,
736 /*retries*/1,
737 /*cbfcnp*/dadone,
738 MSG_SIMPLE_Q_TAG,
739 /*begin_lba*/0,/* Cover the whole disk */
740 /*lb_count*/0,
741 SSD_FULL_SIZE,
742 5 * 60 * 1000);
743
744 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
745 /*sense_flags*/SF_RETRY_UA,
746 softc->disk->d_devstat);
747
748 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
749 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
750 CAM_SCSI_STATUS_ERROR) {
751 int asc, ascq;
752 int sense_key, error_code;
753
754 scsi_extract_sense(&ccb->csio.sense_data,
755 &error_code,
756 &sense_key,
757 &asc, &ascq);
758 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
759 scsi_sense_print(&ccb->csio);
760 } else {
761 xpt_print(periph->path, "Synchronize cache "
762 "failed, status == 0x%x, scsi status == "
763 "0x%x\n", ccb->csio.ccb_h.status,
764 ccb->csio.scsi_status);
765 }
766 }
767
768 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
769 cam_release_devq(ccb->ccb_h.path,
770 /*relsim_flags*/0,
771 /*reduction*/0,
772 /*timeout*/0,
773 /*getcount_only*/0);
774
775 xpt_release_ccb(ccb);
776
777 }
778
779 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
780 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
781 daprevent(periph, PR_ALLOW);
782 /*
783 * If we've got removeable media, mark the blocksize as
784 * unavailable, since it could change when new media is
785 * inserted.
786 */
787 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
788 }
789
790 softc->flags &= ~DA_FLAG_OPEN;
791 cam_periph_unhold(periph);
792 cam_periph_unlock(periph);
793 cam_periph_release(periph);
794 return (0);
795}
796
797/*
798 * Actually translate the requested transfer into one the physical driver
799 * can understand. The transfer is described by a buf and will include
800 * only one physical transfer.
801 */
802static void
803dastrategy(struct bio *bp)
804{
805 struct cam_periph *periph;
806 struct da_softc *softc;
807
808 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
809 if (periph == NULL) {
810 biofinish(bp, NULL, ENXIO);
811 return;
812 }
813 softc = (struct da_softc *)periph->softc;
814
815 cam_periph_lock(periph);
816
817 /*
818 * If the device has been made invalid, error out
819 */
820 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
821 cam_periph_unlock(periph);
822 biofinish(bp, NULL, ENXIO);
823 return;
824 }
825
826 /*
827 * Place it in the queue of disk activities for this disk
828 */
829 bioq_disksort(&softc->bio_queue, bp);
830
831 /*
832 * Schedule ourselves for performing the work.
833 */
834 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
835 cam_periph_unlock(periph);
836
837 return;
838}
839
840static int
841dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
842{
843 struct cam_periph *periph;
844 struct da_softc *softc;
845 u_int secsize;
846 struct ccb_scsiio csio;
847 struct disk *dp;
848
849 dp = arg;
850 periph = dp->d_drv1;
851 if (periph == NULL)
852 return (ENXIO);
853 softc = (struct da_softc *)periph->softc;
854 cam_periph_lock(periph);
855 secsize = softc->params.secsize;
856
857 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
858 cam_periph_unlock(periph);
859 return (ENXIO);
860 }
861
862 if (length > 0) {
863 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
864 csio.ccb_h.ccb_state = DA_CCB_DUMP;
865 scsi_read_write(&csio,
866 /*retries*/1,
867 dadone,
868 MSG_ORDERED_Q_TAG,
869 /*read*/FALSE,
870 /*byte2*/0,
871 /*minimum_cmd_size*/ softc->minimum_cmd_size,
872 offset / secsize,
873 length / secsize,
874 /*data_ptr*/(u_int8_t *) virtual,
875 /*dxfer_len*/length,
876 /*sense_len*/SSD_FULL_SIZE,
877 DA_DEFAULT_TIMEOUT * 1000);
878 xpt_polled_action((union ccb *)&csio);
879
880 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
881 printf("Aborting dump due to I/O error.\n");
882 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
883 CAM_SCSI_STATUS_ERROR)
884 scsi_sense_print(&csio);
885 else
886 printf("status == 0x%x, scsi status == 0x%x\n",
887 csio.ccb_h.status, csio.scsi_status);
888 return(EIO);
889 }
890 cam_periph_unlock(periph);
891 return(0);
892 }
893
894 /*
895 * Sync the disk cache contents to the physical media.
896 */
897 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
898
899 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
900 csio.ccb_h.ccb_state = DA_CCB_DUMP;
901 scsi_synchronize_cache(&csio,
902 /*retries*/1,
903 /*cbfcnp*/dadone,
904 MSG_SIMPLE_Q_TAG,
905 /*begin_lba*/0,/* Cover the whole disk */
906 /*lb_count*/0,
907 SSD_FULL_SIZE,
908 5 * 60 * 1000);
909 xpt_polled_action((union ccb *)&csio);
910
911 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
912 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
913 CAM_SCSI_STATUS_ERROR) {
914 int asc, ascq;
915 int sense_key, error_code;
916
917 scsi_extract_sense(&csio.sense_data,
918 &error_code,
919 &sense_key,
920 &asc, &ascq);
921 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
922 scsi_sense_print(&csio);
923 } else {
924 xpt_print(periph->path, "Synchronize cache "
925 "failed, status == 0x%x, scsi status == "
926 "0x%x\n", csio.ccb_h.status,
927 csio.scsi_status);
928 }
929 }
930 }
931 cam_periph_unlock(periph);
932 return (0);
933}
934
935static void
936dainit(void)
937{
938 cam_status status;
939
940 /*
941 * Install a global async callback. This callback will
942 * receive async callbacks like "new device found".
943 */
944 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
945
946 if (status != CAM_REQ_CMP) {
947 printf("da: Failed to attach master async callback "
948 "due to status 0x%x!\n", status);
949 } else if (da_send_ordered) {
950
951 /* Register our shutdown event handler */
952 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
953 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
954 printf("dainit: shutdown event registration failed!\n");
955 }
956}
957
958static void
959daoninvalidate(struct cam_periph *periph)
960{
961 struct da_softc *softc;
962
963 softc = (struct da_softc *)periph->softc;
964
965 /*
966 * De-register any async callbacks.
967 */
968 xpt_register_async(0, daasync, periph, periph->path);
969
970 softc->flags |= DA_FLAG_PACK_INVALID;
971
972 /*
973 * Return all queued I/O with ENXIO.
974 * XXX Handle any transactions queued to the card
975 * with XPT_ABORT_CCB.
976 */
977 bioq_flush(&softc->bio_queue, NULL, ENXIO);
978
979 disk_gone(softc->disk);
980 xpt_print(periph->path, "lost device\n");
981}
982
983static void
984dacleanup(struct cam_periph *periph)
985{
986 struct da_softc *softc;
987
988 softc = (struct da_softc *)periph->softc;
989
990 xpt_print(periph->path, "removing device entry\n");
991 cam_periph_unlock(periph);
992
993 /*
994 * If we can't free the sysctl tree, oh well...
995 */
996 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
997 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
998 xpt_print(periph->path, "can't remove sysctl context\n");
999 }
1000
1001 disk_destroy(softc->disk);
1002 callout_drain(&softc->sendordered_c);
1003 free(softc, M_DEVBUF);
1004 cam_periph_lock(periph);
1005}
1006
1007static void
1008daasync(void *callback_arg, u_int32_t code,
1009 struct cam_path *path, void *arg)
1010{
1011 struct cam_periph *periph;
1012
1013 periph = (struct cam_periph *)callback_arg;
1014 switch (code) {
1015 case AC_FOUND_DEVICE:
1016 {
1017 struct ccb_getdev *cgd;
1018 cam_status status;
1019
1020 cgd = (struct ccb_getdev *)arg;
1021 if (cgd == NULL)
1022 break;
1023
1024 if (cgd->protocol != PROTO_SCSI)
1025 break;
1026
1027 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1028 && SID_TYPE(&cgd->inq_data) != T_RBC
1029 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1030 break;
1031
1032 /*
1033 * Allocate a peripheral instance for
1034 * this device and start the probe
1035 * process.
1036 */
1037 status = cam_periph_alloc(daregister, daoninvalidate,
1038 dacleanup, dastart,
1039 "da", CAM_PERIPH_BIO,
1040 cgd->ccb_h.path, daasync,
1041 AC_FOUND_DEVICE, cgd);
1042
1043 if (status != CAM_REQ_CMP
1044 && status != CAM_REQ_INPROG)
1045 printf("daasync: Unable to attach to new device "
1046 "due to status 0x%x\n", status);
1047 break;
1048 }
1049 case AC_SENT_BDR:
1050 case AC_BUS_RESET:
1051 {
1052 struct da_softc *softc;
1053 struct ccb_hdr *ccbh;
1054
1055 softc = (struct da_softc *)periph->softc;
1056 /*
1057 * Don't fail on the expected unit attention
1058 * that will occur.
1059 */
1060 softc->flags |= DA_FLAG_RETRY_UA;
1061 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1062 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1063 /* FALLTHROUGH*/
1064 }
1065 default:
1066 cam_periph_async(periph, code, path, arg);
1067 break;
1068 }
1069}
1070
1071static void
1072dasysctlinit(void *context, int pending)
1073{
1074 struct cam_periph *periph;
1075 struct da_softc *softc;
1076 char tmpstr[80], tmpstr2[80];
1077 struct ccb_trans_settings cts;
1078
1079 periph = (struct cam_periph *)context;
1080 /*
1081 * periph was held for us when this task was enqueued
1082 */
1083 if (periph->flags & CAM_PERIPH_INVALID) {
1084 cam_periph_release(periph);
1085 return;
1086 }
1087
1088 softc = (struct da_softc *)periph->softc;
1089 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1090 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1091
1092 sysctl_ctx_init(&softc->sysctl_ctx);
1093 softc->flags |= DA_FLAG_SCTX_INIT;
1094 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1095 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1096 CTLFLAG_RD, 0, tmpstr);
1097 if (softc->sysctl_tree == NULL) {
1098 printf("dasysctlinit: unable to allocate sysctl tree\n");
1099 cam_periph_release(periph);
1100 return;
1101 }
1102
1103 /*
1104 * Now register the sysctl handler, so the user can change the value on
1105 * the fly.
1106 */
1107 SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1108 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1109 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1110 "Minimum CDB size");
1111
1112 /*
1113 * Add some addressing info.
1114 */
1115 memset(&cts, 0, sizeof (cts));
1116 xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1117 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1118 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1119 cam_periph_lock(periph);
1120 xpt_action((union ccb *)&cts);
1121 cam_periph_unlock(periph);
1122 if (cts.ccb_h.status != CAM_REQ_CMP) {
1123 cam_periph_release(periph);
1124 return;
1125 }
1126 if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1127 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1128 if (fc->valid & CTS_FC_VALID_WWPN) {
1129 softc->wwpn = fc->wwpn;
1130 SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1131 SYSCTL_CHILDREN(softc->sysctl_tree),
1132 OID_AUTO, "wwpn", CTLFLAG_RD,
1133 &softc->wwpn, "World Wide Port Name");
1134 }
1135 }
1136 cam_periph_release(periph);
1137}
1138
1139static int
1140dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1141{
1142 int error, value;
1143
1144 value = *(int *)arg1;
1145
1146 error = sysctl_handle_int(oidp, &value, 0, req);
1147
1148 if ((error != 0)
1149 || (req->newptr == NULL))
1150 return (error);
1151
1152 /*
1153 * Acceptable values here are 6, 10, 12 or 16.
1154 */
1155 if (value < 6)
1156 value = 6;
1157 else if ((value > 6)
1158 && (value <= 10))
1159 value = 10;
1160 else if ((value > 10)
1161 && (value <= 12))
1162 value = 12;
1163 else if (value > 12)
1164 value = 16;
1165
1166 *(int *)arg1 = value;
1167
1168 return (0);
1169}
1170
1171static cam_status
1172daregister(struct cam_periph *periph, void *arg)
1173{
1174 struct da_softc *softc;
1175 struct ccb_pathinq cpi;
1176 struct ccb_getdev *cgd;
1177 char tmpstr[80];
1178 caddr_t match;
1179
1180 cgd = (struct ccb_getdev *)arg;
1181 if (periph == NULL) {
1182 printf("daregister: periph was NULL!!\n");
1183 return(CAM_REQ_CMP_ERR);
1184 }
1185
1186 if (cgd == NULL) {
1187 printf("daregister: no getdev CCB, can't register device\n");
1188 return(CAM_REQ_CMP_ERR);
1189 }
1190
1191 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1192 M_NOWAIT|M_ZERO);
1193
1194 if (softc == NULL) {
1195 printf("daregister: Unable to probe new device. "
1196 "Unable to allocate softc\n");
1197 return(CAM_REQ_CMP_ERR);
1198 }
1199
1200 LIST_INIT(&softc->pending_ccbs);
1201 softc->state = DA_STATE_PROBE;
1202 bioq_init(&softc->bio_queue);
1203 if (SID_IS_REMOVABLE(&cgd->inq_data))
1204 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1205 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1206 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1207
1208 periph->softc = softc;
1209
1210 /*
1211 * See if this device has any quirks.
1212 */
1213 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1214 (caddr_t)da_quirk_table,
1215 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1216 sizeof(*da_quirk_table), scsi_inquiry_match);
1217
1218 if (match != NULL)
1219 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1220 else
1221 softc->quirks = DA_Q_NONE;
1222
1223 /* Check if the SIM does not want 6 byte commands */
1224 bzero(&cpi, sizeof(cpi));
1225 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1226 cpi.ccb_h.func_code = XPT_PATH_INQ;
1227 xpt_action((union ccb *)&cpi);
1228 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1229 softc->quirks |= DA_Q_NO_6_BYTE;
1230
1231 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1232
1233 /*
1234 * RBC devices don't have to support READ(6), only READ(10).
1235 */
1236 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1237 softc->minimum_cmd_size = 10;
1238 else
1239 softc->minimum_cmd_size = 6;
1240
1241 /*
1242 * Load the user's default, if any.
1243 */
1244 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1245 periph->unit_number);
1246 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1247
1248 /*
1249 * 6, 10, 12 and 16 are the currently permissible values.
1250 */
1251 if (softc->minimum_cmd_size < 6)
1252 softc->minimum_cmd_size = 6;
1253 else if ((softc->minimum_cmd_size > 6)
1254 && (softc->minimum_cmd_size <= 10))
1255 softc->minimum_cmd_size = 10;
1256 else if ((softc->minimum_cmd_size > 10)
1257 && (softc->minimum_cmd_size <= 12))
1258 softc->minimum_cmd_size = 12;
1259 else if (softc->minimum_cmd_size > 12)
1260 softc->minimum_cmd_size = 16;
1261
1262 /*
1263 * Register this media as a disk
1264 */
1265
1266 /*
1267 * Add async callbacks for bus reset and
1268 * bus device reset calls. I don't bother
1269 * checking if this fails as, in most cases,
1270 * the system will function just fine without
1271 * them and the only alternative would be to
1272 * not attach the device on failure.
1273 */
1274 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE,
1275 daasync, periph, periph->path);
1276
1277 /*
1278 * Take an exclusive refcount on the periph while dastart is called
1279 * to finish the probe. The reference will be dropped in dadone at
1280 * the end of probe.
1281 */
1282 (void)cam_periph_hold(periph, PRIBIO);
1283
1284 /*
1285 * Schedule a periodic event to occasionally send an
1286 * ordered tag to a device.
1287 */
1288 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1289 callout_reset(&softc->sendordered_c,
1290 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1291 dasendorderedtag, softc);
1292
1293 mtx_unlock(periph->sim->mtx);
1294 softc->disk = disk_alloc();
1295 softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1296 periph->unit_number, 0,
1297 DEVSTAT_BS_UNAVAILABLE,
1298 SID_TYPE(&cgd->inq_data) |
1299 XPORT_DEVSTAT_TYPE(cpi.transport),
1300 DEVSTAT_PRIORITY_DISK);
1301 softc->disk->d_open = daopen;
1302 softc->disk->d_close = daclose;
1303 softc->disk->d_strategy = dastrategy;
1304 softc->disk->d_dump = dadump;
1305 softc->disk->d_name = "da";
1306 softc->disk->d_drv1 = periph;
1307 if (cpi.maxio == 0)
1308 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */
1309 else if (cpi.maxio > MAXPHYS)
1310 softc->disk->d_maxsize = MAXPHYS; /* for safety */
1311 else
1312 softc->disk->d_maxsize = cpi.maxio;
1313 softc->disk->d_unit = periph->unit_number;
1314 softc->disk->d_flags = 0;
1315 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1316 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1317 strlcpy(softc->disk->d_ident, cgd->serial_num,
1318 MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1));
1319 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1320 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1321 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1322 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1323 cgd->inq_data.product, sizeof(cgd->inq_data.product),
1324 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1325 softc->disk->d_hba_vendor = cpi.hba_vendor;
1326 softc->disk->d_hba_device = cpi.hba_device;
1327 softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1328 softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1329 disk_create(softc->disk, DISK_VERSION);
1330 mtx_lock(periph->sim->mtx);
1331
1332 xpt_schedule(periph, CAM_PRIORITY_DEV);
1333
1334 return(CAM_REQ_CMP);
1335}
1336
1337static void
1338dastart(struct cam_periph *periph, union ccb *start_ccb)
1339{
1340 struct da_softc *softc;
1341
1342 softc = (struct da_softc *)periph->softc;
1343
1344 switch (softc->state) {
1345 case DA_STATE_NORMAL:
1346 {
1347 /* Pull a buffer from the queue and get going on it */
1348 struct bio *bp;
1349
1350 /*
1351 * See if there is a buf with work for us to do..
1352 */
1353 bp = bioq_first(&softc->bio_queue);
1354 if (periph->immediate_priority <= periph->pinfo.priority) {
1355 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1356 ("queuing for immediate ccb\n"));
1357 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1358 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1359 periph_links.sle);
1360 periph->immediate_priority = CAM_PRIORITY_NONE;
1361 wakeup(&periph->ccb_list);
1362 } else if (bp == NULL) {
1363 xpt_release_ccb(start_ccb);
1364 } else {
1365 u_int8_t tag_code;
1366
1367 bioq_remove(&softc->bio_queue, bp);
1368
1369 if ((bp->bio_flags & BIO_ORDERED) != 0
1370 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1371 softc->flags &= ~DA_FLAG_NEED_OTAG;
1372 softc->ordered_tag_count++;
1373 tag_code = MSG_ORDERED_Q_TAG;
1374 } else {
1375 tag_code = MSG_SIMPLE_Q_TAG;
1376 }
1377 switch (bp->bio_cmd) {
1378 case BIO_READ:
1379 case BIO_WRITE:
1380 scsi_read_write(&start_ccb->csio,
1381 /*retries*/da_retry_count,
1382 /*cbfcnp*/dadone,
1383 /*tag_action*/tag_code,
1384 /*read_op*/bp->bio_cmd
1385 == BIO_READ,
1386 /*byte2*/0,
1387 softc->minimum_cmd_size,
1388 /*lba*/bp->bio_pblkno,
1389 /*block_count*/bp->bio_bcount /
1390 softc->params.secsize,
1391 /*data_ptr*/ bp->bio_data,
1392 /*dxfer_len*/ bp->bio_bcount,
1393 /*sense_len*/SSD_FULL_SIZE,
1394 da_default_timeout * 1000);
1395 break;
1396 case BIO_FLUSH:
1397 /*
1398 * BIO_FLUSH doesn't currently communicate
1399 * range data, so we synchronize the cache
1400 * over the whole disk. We also force
1401 * ordered tag semantics the flush applies
1402 * to all previously queued I/O.
1403 */
1404 scsi_synchronize_cache(&start_ccb->csio,
1405 /*retries*/1,
1406 /*cbfcnp*/dadone,
1407 MSG_ORDERED_Q_TAG,
1408 /*begin_lba*/0,
1409 /*lb_count*/0,
1410 SSD_FULL_SIZE,
1411 da_default_timeout*1000);
1412 break;
1413 }
1414 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1415
1416 /*
1417 * Block out any asyncronous callbacks
1418 * while we touch the pending ccb list.
1419 */
1420 LIST_INSERT_HEAD(&softc->pending_ccbs,
1421 &start_ccb->ccb_h, periph_links.le);
1422 softc->outstanding_cmds++;
1423
1424 /* We expect a unit attention from this device */
1425 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1426 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1427 softc->flags &= ~DA_FLAG_RETRY_UA;
1428 }
1429
1430 start_ccb->ccb_h.ccb_bp = bp;
1431 bp = bioq_first(&softc->bio_queue);
1432
1433 xpt_action(start_ccb);
1434 }
1435
1436 if (bp != NULL) {
1437 /* Have more work to do, so ensure we stay scheduled */
1438 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1439 }
1440 break;
1441 }
1442 case DA_STATE_PROBE:
1443 {
1444 struct ccb_scsiio *csio;
1445 struct scsi_read_capacity_data *rcap;
1446
1447 rcap = (struct scsi_read_capacity_data *)
1448 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1449 if (rcap == NULL) {
1450 printf("dastart: Couldn't malloc read_capacity data\n");
1451 /* da_free_periph??? */
1452 break;
1453 }
1454 csio = &start_ccb->csio;
1455 scsi_read_capacity(csio,
1456 /*retries*/4,
1457 dadone,
1458 MSG_SIMPLE_Q_TAG,
1459 rcap,
1460 SSD_FULL_SIZE,
1461 /*timeout*/5000);
1462 start_ccb->ccb_h.ccb_bp = NULL;
1463 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1464 xpt_action(start_ccb);
1465 break;
1466 }
1467 case DA_STATE_PROBE2:
1468 {
1469 struct ccb_scsiio *csio;
1470 struct scsi_read_capacity_data_long *rcaplong;
1471
1472 rcaplong = (struct scsi_read_capacity_data_long *)
1473 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1474 if (rcaplong == NULL) {
1475 printf("dastart: Couldn't malloc read_capacity data\n");
1476 /* da_free_periph??? */
1477 break;
1478 }
1479 csio = &start_ccb->csio;
1480 scsi_read_capacity_16(csio,
1481 /*retries*/ 4,
1482 /*cbfcnp*/ dadone,
1483 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1484 /*lba*/ 0,
1485 /*reladr*/ 0,
1486 /*pmi*/ 0,
1487 rcaplong,
1488 /*sense_len*/ SSD_FULL_SIZE,
1489 /*timeout*/ 60000);
1490 start_ccb->ccb_h.ccb_bp = NULL;
1491 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1492 xpt_action(start_ccb);
1493 break;
1494 }
1495 }
1496}
1497
1498static int
1499cmd6workaround(union ccb *ccb)
1500{
1501 struct scsi_rw_6 cmd6;
1502 struct scsi_rw_10 *cmd10;
1503 struct da_softc *softc;
1504 u_int8_t *cdb;
1505 int frozen;
1506
1507 cdb = ccb->csio.cdb_io.cdb_bytes;
1508
1509 /* Translation only possible if CDB is an array and cmd is R/W6 */
1510 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1511 (*cdb != READ_6 && *cdb != WRITE_6))
1512 return 0;
1513
1514 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1515 "increasing minimum_cmd_size to 10.\n");
1516 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1517 softc->minimum_cmd_size = 10;
1518
1519 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1520 cmd10 = (struct scsi_rw_10 *)cdb;
1521 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1522 cmd10->byte2 = 0;
1523 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1524 cmd10->reserved = 0;
1525 scsi_ulto2b(cmd6.length, cmd10->length);
1526 cmd10->control = cmd6.control;
1527 ccb->csio.cdb_len = sizeof(*cmd10);
1528
1529 /* Requeue request, unfreezing queue if necessary */
1530 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1531 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1532 xpt_action(ccb);
1533 if (frozen) {
1534 cam_release_devq(ccb->ccb_h.path,
1535 /*relsim_flags*/0,
1536 /*reduction*/0,
1537 /*timeout*/0,
1538 /*getcount_only*/0);
1539 }
1540 return (ERESTART);
1541}
1542
1543static void
1544dadone(struct cam_periph *periph, union ccb *done_ccb)
1545{
1546 struct da_softc *softc;
1547 struct ccb_scsiio *csio;
1548 u_int32_t priority;
1549
1550 softc = (struct da_softc *)periph->softc;
1551 priority = done_ccb->ccb_h.pinfo.priority;
1552 csio = &done_ccb->csio;
1553 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1554 case DA_CCB_BUFFER_IO:
1555 {
1556 struct bio *bp;
1557
1558 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1559 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1560 int error;
1561 int sf;
1562
1563 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1564 sf = SF_RETRY_UA;
1565 else
1566 sf = 0;
1567
1568 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1569 if (error == ERESTART) {
1570 /*
1571 * A retry was scheuled, so
1572 * just return.
1573 */
1574 return;
1575 }
1576 if (error != 0) {
1577
1578 if (error == ENXIO) {
1579 /*
1580 * Catastrophic error. Mark our pack as
1581 * invalid.
1582 */
1583 /*
1584 * XXX See if this is really a media
1585 * XXX change first?
1586 */
1587 xpt_print(periph->path,
1588 "Invalidating pack\n");
1589 softc->flags |= DA_FLAG_PACK_INVALID;
1590 }
1591
1592 /*
1593 * return all queued I/O with EIO, so that
1594 * the client can retry these I/Os in the
1595 * proper order should it attempt to recover.
1596 */
1597 bioq_flush(&softc->bio_queue, NULL, EIO);
1598 bp->bio_error = error;
1599 bp->bio_resid = bp->bio_bcount;
1600 bp->bio_flags |= BIO_ERROR;
1601 } else {
1602 bp->bio_resid = csio->resid;
1603 bp->bio_error = 0;
1604 if (bp->bio_resid != 0)
1605 bp->bio_flags |= BIO_ERROR;
1606 }
1607 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1608 cam_release_devq(done_ccb->ccb_h.path,
1609 /*relsim_flags*/0,
1610 /*reduction*/0,
1611 /*timeout*/0,
1612 /*getcount_only*/0);
1613 } else {
1614 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1615 panic("REQ_CMP with QFRZN");
1616 bp->bio_resid = csio->resid;
1617 if (csio->resid > 0)
1618 bp->bio_flags |= BIO_ERROR;
1619 }
1620
1621 /*
1622 * Block out any asyncronous callbacks
1623 * while we touch the pending ccb list.
1624 */
1625 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1626 softc->outstanding_cmds--;
1627 if (softc->outstanding_cmds == 0)
1628 softc->flags |= DA_FLAG_WENT_IDLE;
1629
1630 biodone(bp);
1631 break;
1632 }
1633 case DA_CCB_PROBE:
1634 case DA_CCB_PROBE2:
1635 {
1636 struct scsi_read_capacity_data *rdcap;
1637 struct scsi_read_capacity_data_long *rcaplong;
1638 char announce_buf[80];
1639
1640 rdcap = NULL;
1641 rcaplong = NULL;
1642 if (softc->state == DA_STATE_PROBE)
1643 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1644 else
1645 rcaplong = (struct scsi_read_capacity_data_long *)
1646 csio->data_ptr;
1647
1648 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1649 struct disk_params *dp;
1650 uint32_t block_size;
1651 uint64_t maxsector;
1652
1653 if (softc->state == DA_STATE_PROBE) {
1654 block_size = scsi_4btoul(rdcap->length);
1655 maxsector = scsi_4btoul(rdcap->addr);
1656
1657 /*
1658 * According to SBC-2, if the standard 10
1659 * byte READ CAPACITY command returns 2^32,
1660 * we should issue the 16 byte version of
1661 * the command, since the device in question
1662 * has more sectors than can be represented
1663 * with the short version of the command.
1664 */
1665 if (maxsector == 0xffffffff) {
1666 softc->state = DA_STATE_PROBE2;
1667 free(rdcap, M_SCSIDA);
1668 xpt_release_ccb(done_ccb);
1669 xpt_schedule(periph, priority);
1670 return;
1671 }
1672 } else {
1673 block_size = scsi_4btoul(rcaplong->length);
1674 maxsector = scsi_8btou64(rcaplong->addr);
1675 }
1676
1677 /*
1678 * Because GEOM code just will panic us if we
1679 * give them an 'illegal' value we'll avoid that
1680 * here.
1681 */
1682 if (block_size == 0 && maxsector == 0) {
1683 snprintf(announce_buf, sizeof(announce_buf),
1684 "0MB (no media?)");
1685 } else if (block_size >= MAXPHYS || block_size == 0) {
1686 xpt_print(periph->path,
1687 "unsupportable block size %ju\n",
1688 (uintmax_t) block_size);
1689 announce_buf[0] = '\0';
1690 cam_periph_invalidate(periph);
1691 } else {
1692 dasetgeom(periph, block_size, maxsector);
1693 dp = &softc->params;
1694 snprintf(announce_buf, sizeof(announce_buf),
1695 "%juMB (%ju %u byte sectors: %dH %dS/T "
1696 "%dC)", (uintmax_t)
1697 (((uintmax_t)dp->secsize *
1698 dp->sectors) / (1024*1024)),
1699 (uintmax_t)dp->sectors,
1700 dp->secsize, dp->heads,
1701 dp->secs_per_track, dp->cylinders);
1702 }
1703 } else {
1704 int error;
1705
1706 announce_buf[0] = '\0';
1707
1708 /*
1709 * Retry any UNIT ATTENTION type errors. They
1710 * are expected at boot.
1711 */
1712 error = daerror(done_ccb, CAM_RETRY_SELTO,
1713 SF_RETRY_UA|SF_NO_PRINT);
1714 if (error == ERESTART) {
1715 /*
1716 * A retry was scheuled, so
1717 * just return.
1718 */
1719 return;
1720 } else if (error != 0) {
1721 struct scsi_sense_data *sense;
1722 int asc, ascq;
1723 int sense_key, error_code;
1724 int have_sense;
1725 cam_status status;
1726 struct ccb_getdev cgd;
1727
1728 /* Don't wedge this device's queue */
1729 status = done_ccb->ccb_h.status;
1730 if ((status & CAM_DEV_QFRZN) != 0)
1731 cam_release_devq(done_ccb->ccb_h.path,
1732 /*relsim_flags*/0,
1733 /*reduction*/0,
1734 /*timeout*/0,
1735 /*getcount_only*/0);
1736
1737
1738 xpt_setup_ccb(&cgd.ccb_h,
1739 done_ccb->ccb_h.path,
1740 CAM_PRIORITY_NORMAL);
1741 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1742 xpt_action((union ccb *)&cgd);
1743
1744 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1745 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1746 || ((status & CAM_AUTOSNS_VALID) == 0))
1747 have_sense = FALSE;
1748 else
1749 have_sense = TRUE;
1750
1751 if (have_sense) {
1752 sense = &csio->sense_data;
1753 scsi_extract_sense(sense, &error_code,
1754 &sense_key,
1755 &asc, &ascq);
1756 }
1757 /*
1758 * Attach to anything that claims to be a
1759 * direct access or optical disk device,
1760 * as long as it doesn't return a "Logical
1761 * unit not supported" (0x25) error.
1762 */
1763 if ((have_sense) && (asc != 0x25)
1764 && (error_code == SSD_CURRENT_ERROR)) {
1765 const char *sense_key_desc;
1766 const char *asc_desc;
1767
1768 scsi_sense_desc(sense_key, asc, ascq,
1769 &cgd.inq_data,
1770 &sense_key_desc,
1771 &asc_desc);
1772 snprintf(announce_buf,
1773 sizeof(announce_buf),
1774 "Attempt to query device "
1775 "size failed: %s, %s",
1776 sense_key_desc,
1777 asc_desc);
1778 } else {
1779 if (have_sense)
1780 scsi_sense_print(
1781 &done_ccb->csio);
1782 else {
1783 xpt_print(periph->path,
1784 "got CAM status %#x\n",
1785 done_ccb->ccb_h.status);
1786 }
1787
1788 xpt_print(periph->path, "fatal error, "
1789 "failed to attach to device\n");
1790
1791 /*
1792 * Free up resources.
1793 */
1794 cam_periph_invalidate(periph);
1795 }
1796 }
1797 }
1798 free(csio->data_ptr, M_SCSIDA);
1799 if (announce_buf[0] != '\0') {
1800 xpt_announce_periph(periph, announce_buf);
1801 /*
1802 * Create our sysctl variables, now that we know
1803 * we have successfully attached.
1804 */
1805 (void) cam_periph_acquire(periph); /* increase the refcount */
1806 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1807 }
1808 softc->state = DA_STATE_NORMAL;
1809 /*
1810 * Since our peripheral may be invalidated by an error
1811 * above or an external event, we must release our CCB
1812 * before releasing the probe lock on the peripheral.
1813 * The peripheral will only go away once the last lock
1814 * is removed, and we need it around for the CCB release
1815 * operation.
1816 */
1817 xpt_release_ccb(done_ccb);
1818 cam_periph_unhold(periph);
1819 return;
1820 }
1821 case DA_CCB_WAITING:
1822 {
1823 /* Caller will release the CCB */
1824 wakeup(&done_ccb->ccb_h.cbfcnp);
1825 return;
1826 }
1827 case DA_CCB_DUMP:
1828 /* No-op. We're polling */
1829 return;
1830 default:
1831 break;
1832 }
1833 xpt_release_ccb(done_ccb);
1834}
1835
1836static int
1837daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1838{
1839 struct da_softc *softc;
1840 struct cam_periph *periph;
1841 int error;
1842
1843 periph = xpt_path_periph(ccb->ccb_h.path);
1844 softc = (struct da_softc *)periph->softc;
1845
1846 /*
1847 * Automatically detect devices that do not support
1848 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1849 */
1850 error = 0;
1851 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1852 error = cmd6workaround(ccb);
1853 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1854 CAM_SCSI_STATUS_ERROR)
1855 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1856 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1857 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1858 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1859 int sense_key, error_code, asc, ascq;
1860
1861 scsi_extract_sense(&ccb->csio.sense_data,
1862 &error_code, &sense_key, &asc, &ascq);
1863 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1864 error = cmd6workaround(ccb);
1865 }
1866 if (error == ERESTART)
1867 return (ERESTART);
1868
1869 /*
1870 * XXX
1871 * Until we have a better way of doing pack validation,
1872 * don't treat UAs as errors.
1873 */
1874 sense_flags |= SF_RETRY_UA;
1875 return(cam_periph_error(ccb, cam_flags, sense_flags,
1876 &softc->saved_ccb));
1877}
1878
1879static void
1880daprevent(struct cam_periph *periph, int action)
1881{
1882 struct da_softc *softc;
1883 union ccb *ccb;
1884 int error;
1885
1886 softc = (struct da_softc *)periph->softc;
1887
1888 if (((action == PR_ALLOW)
1889 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1890 || ((action == PR_PREVENT)
1891 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1892 return;
1893 }
1894
1895 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1896
1897 scsi_prevent(&ccb->csio,
1898 /*retries*/1,
1899 /*cbcfp*/dadone,
1900 MSG_SIMPLE_Q_TAG,
1901 action,
1902 SSD_FULL_SIZE,
1903 5000);
1904
1905 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1906 SF_RETRY_UA, softc->disk->d_devstat);
1907
1908 if (error == 0) {
1909 if (action == PR_ALLOW)
1910 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1911 else
1912 softc->flags |= DA_FLAG_PACK_LOCKED;
1913 }
1914
1915 xpt_release_ccb(ccb);
1916}
1917
1918static int
1919dagetcapacity(struct cam_periph *periph)
1920{
1921 struct da_softc *softc;
1922 union ccb *ccb;
1923 struct scsi_read_capacity_data *rcap;
1924 struct scsi_read_capacity_data_long *rcaplong;
1925 uint32_t block_len;
1926 uint64_t maxsector;
1927 int error;
1928 u_int32_t sense_flags;
1929
1930 softc = (struct da_softc *)periph->softc;
1931 block_len = 0;
1932 maxsector = 0;
1933 error = 0;
1934 sense_flags = SF_RETRY_UA;
1935 if (softc->flags & DA_FLAG_PACK_REMOVABLE)
1936 sense_flags |= SF_NO_PRINT;
1937
1938 /* Do a read capacity */
1939 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1940 M_SCSIDA,
1941 M_NOWAIT);
1942 if (rcap == NULL)
1943 return (ENOMEM);
1944
1945 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1946 scsi_read_capacity(&ccb->csio,
1947 /*retries*/4,
1948 /*cbfncp*/dadone,
1949 MSG_SIMPLE_Q_TAG,
1950 rcap,
1951 SSD_FULL_SIZE,
1952 /*timeout*/60000);
1953 ccb->ccb_h.ccb_bp = NULL;
1954
1955 error = cam_periph_runccb(ccb, daerror,
1956 /*cam_flags*/CAM_RETRY_SELTO,
1957 sense_flags,
1958 softc->disk->d_devstat);
1959
1960 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1961 cam_release_devq(ccb->ccb_h.path,
1962 /*relsim_flags*/0,
1963 /*reduction*/0,
1964 /*timeout*/0,
1965 /*getcount_only*/0);
1966
1967 if (error == 0) {
1968 block_len = scsi_4btoul(rcap->length);
1969 maxsector = scsi_4btoul(rcap->addr);
1970
1971 if (maxsector != 0xffffffff)
1972 goto done;
1973 } else
1974 goto done;
1975
1976 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1977
1978 scsi_read_capacity_16(&ccb->csio,
1979 /*retries*/ 4,
1980 /*cbfcnp*/ dadone,
1981 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1982 /*lba*/ 0,
1983 /*reladr*/ 0,
1984 /*pmi*/ 0,
1985 rcaplong,
1986 /*sense_len*/ SSD_FULL_SIZE,
1987 /*timeout*/ 60000);
1988 ccb->ccb_h.ccb_bp = NULL;
1989
1990 error = cam_periph_runccb(ccb, daerror,
1991 /*cam_flags*/CAM_RETRY_SELTO,
1992 sense_flags,
1993 softc->disk->d_devstat);
1994
1995 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1996 cam_release_devq(ccb->ccb_h.path,
1997 /*relsim_flags*/0,
1998 /*reduction*/0,
1999 /*timeout*/0,
2000 /*getcount_only*/0);
2001
2002 if (error == 0) {
2003 block_len = scsi_4btoul(rcaplong->length);
2004 maxsector = scsi_8btou64(rcaplong->addr);
2005 }
2006
2007done:
2008
2009 if (error == 0) {
2010 if (block_len >= MAXPHYS || block_len == 0) {
2011 xpt_print(periph->path,
2012 "unsupportable block size %ju\n",
2013 (uintmax_t) block_len);
2014 error = EINVAL;
2015 } else
2016 dasetgeom(periph, block_len, maxsector);
2017 }
2018
2019 xpt_release_ccb(ccb);
2020
2021 free(rcap, M_SCSIDA);
2022
2023 return (error);
2024}
2025
2026static void
2027dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
2028{
2029 struct ccb_calc_geometry ccg;
2030 struct da_softc *softc;
2031 struct disk_params *dp;
2032
2033 softc = (struct da_softc *)periph->softc;
2034
2035 dp = &softc->params;
2036 dp->secsize = block_len;
2037 dp->sectors = maxsector + 1;
2038 /*
2039 * Have the controller provide us with a geometry
2040 * for this disk. The only time the geometry
2041 * matters is when we boot and the controller
2042 * is the only one knowledgeable enough to come
2043 * up with something that will make this a bootable
2044 * device.
2045 */
2046 xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2047 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2048 ccg.block_size = dp->secsize;
2049 ccg.volume_size = dp->sectors;
2050 ccg.heads = 0;
2051 ccg.secs_per_track = 0;
2052 ccg.cylinders = 0;
2053 xpt_action((union ccb*)&ccg);
2054 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2055 /*
2056 * We don't know what went wrong here- but just pick
2057 * a geometry so we don't have nasty things like divide
2058 * by zero.
2059 */
2060 dp->heads = 255;
2061 dp->secs_per_track = 255;
2062 dp->cylinders = dp->sectors / (255 * 255);
2063 if (dp->cylinders == 0) {
2064 dp->cylinders = 1;
2065 }
2066 } else {
2067 dp->heads = ccg.heads;
2068 dp->secs_per_track = ccg.secs_per_track;
2069 dp->cylinders = ccg.cylinders;
2070 }
2071}
2072
2073static void
2074dasendorderedtag(void *arg)
2075{
2076 struct da_softc *softc = arg;
2077
2078 if (da_send_ordered) {
2079 if ((softc->ordered_tag_count == 0)
2080 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2081 softc->flags |= DA_FLAG_NEED_OTAG;
2082 }
2083 if (softc->outstanding_cmds > 0)
2084 softc->flags &= ~DA_FLAG_WENT_IDLE;
2085
2086 softc->ordered_tag_count = 0;
2087 }
2088 /* Queue us up again */
2089 callout_reset(&softc->sendordered_c,
2090 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2091 dasendorderedtag, softc);
2092}
2093
2094/*
2095 * Step through all DA peripheral drivers, and if the device is still open,
2096 * sync the disk cache to physical media.
2097 */
2098static void
2099dashutdown(void * arg, int howto)
2100{
2101 struct cam_periph *periph;
2102 struct da_softc *softc;
2103
2104 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2105 union ccb ccb;
2106
2107 cam_periph_lock(periph);
2108 softc = (struct da_softc *)periph->softc;
2109
2110 /*
2111 * We only sync the cache if the drive is still open, and
2112 * if the drive is capable of it..
2113 */
2114 if (((softc->flags & DA_FLAG_OPEN) == 0)
2115 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2116 cam_periph_unlock(periph);
2117 continue;
2118 }
2119
2120 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2121
2122 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2123 scsi_synchronize_cache(&ccb.csio,
2124 /*retries*/1,
2125 /*cbfcnp*/dadone,
2126 MSG_SIMPLE_Q_TAG,
2127 /*begin_lba*/0, /* whole disk */
2128 /*lb_count*/0,
2129 SSD_FULL_SIZE,
2130 60 * 60 * 1000);
2131
2132 xpt_polled_action(&ccb);
2133
2134 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2135 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2136 CAM_SCSI_STATUS_ERROR)
2137 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2138 int error_code, sense_key, asc, ascq;
2139
2140 scsi_extract_sense(&ccb.csio.sense_data,
2141 &error_code, &sense_key,
2142 &asc, &ascq);
2143
2144 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2145 scsi_sense_print(&ccb.csio);
2146 } else {
2147 xpt_print(periph->path, "Synchronize "
2148 "cache failed, status == 0x%x, scsi status "
2149 "== 0x%x\n", ccb.ccb_h.status,
2150 ccb.csio.scsi_status);
2151 }
2152 }
2153
2154 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2155 cam_release_devq(ccb.ccb_h.path,
2156 /*relsim_flags*/0,
2157 /*reduction*/0,
2158 /*timeout*/0,
2159 /*getcount_only*/0);
2160 cam_periph_unlock(periph);
2161 }
2162}
2163
2164#else /* !_KERNEL */
2165
2166/*
2167 * XXX This is only left out of the kernel build to silence warnings. If,
2168 * for some reason this function is used in the kernel, the ifdefs should
2169 * be moved so it is included both in the kernel and userland.
2170 */
2171void
2172scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2173 void (*cbfcnp)(struct cam_periph *, union ccb *),
2174 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2175 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2176 u_int32_t timeout)
2177{
2178 struct scsi_format_unit *scsi_cmd;
2179
2180 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2181 scsi_cmd->opcode = FORMAT_UNIT;
2182 scsi_cmd->byte2 = byte2;
2183 scsi_ulto2b(ileave, scsi_cmd->interleave);
2184
2185 cam_fill_csio(csio,
2186 retries,
2187 cbfcnp,
2188 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2189 tag_action,
2190 data_ptr,
2191 dxfer_len,
2192 sense_len,
2193 sizeof(*scsi_cmd),
2194 timeout);
2195}
2196
2197#endif /* _KERNEL */